1061550320 has 20 divisors (see below), whose sum is σ = 2468104680. Its totient is φ = 424620096.

The previous prime is 1061550283. The next prime is 1061550341. The reversal of 1061550320 is 230551601.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×1061550320² = 2253778163784204800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6634610 + ... + 6634769.

It is an arithmetic number, because the mean of its divisors is an integer number (123405234).

Almost surely, 2^1061550320 is an apocalyptic number.

1061550320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1061550320 is an abundant number, since it is smaller than the sum of its proper divisors (1406554360).

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

1061550320 is a wasteful number, since it uses less digits than its factorization.

1061550320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13269392 (or 13269386 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 1061550320 is about 32581.4413431941. The cubic root of 1061550320 is about 1020.1096639749.

The spelling of 1061550320 in words is "one billion, sixty-one million, five hundred fifty thousand, three hundred twenty".