1065557448 has 36 divisors (see below), whose sum is σ = 2886635115. Its totient is φ = 355093488.

The previous prime is 1065557447. The next prime is 1065557473. The reversal of 1065557448 is 8447555601.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

1065557448 is a `hidden beast` number, since 10 + 65 + 5 + 574 + 4 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 532778724 + 532778724 = 23082^2 + 23082^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=23082.

It is a super-2 number, since 2×1065557448² = 2270825349976545408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1065557447) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 275061 + ... + 278907.

Almost surely, 2^1065557448 is an apocalyptic number.

1065557448 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1065557448 is an abundant number, since it is smaller than the sum of its proper divisors (1821077667).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1065557448 is an frugal number, since it uses more digits than its factorization.

1065557448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7706 (or 3852 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 45.

The square root of 1065557448 is about 32642.8774466958. The cubic root of 1065557448 is about 1021.3916183851.

It can be divided in two parts, 106555 and 7448, that added together give a triangular number (114003 = T₄₇₇).

The spelling of 1065557448 in words is "one billion, sixty-five million, five hundred fifty-seven thousand, four hundred forty-eight".