1055660650 has 24 divisors (see below), whose sum is σ = 2142032544. Its totient is φ = 383876400.

The previous prime is 1055660623. The next prime is 1055660657. The reversal of 1055660650 is 560665501.

It is a super-2 number, since 2×1055660650² = 2228838815916845000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1055660657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 959142 + ... + 960241.

It is an arithmetic number, because the mean of its divisors is an integer number (89251356).

Almost surely, 2^1055660650 is an apocalyptic number.

1055660650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1055660650 is an abundant number, since it is smaller than the sum of its proper divisors (1086371894).

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

1055660650 is a wasteful number, since it uses less digits than its factorization.

1055660650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1919406 (or 1919401 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 1055660650 is about 32490.9318118148. The cubic root of 1055660650 is about 1018.2195808578.

The spelling of 1055660650 in words is "one billion, fifty-five million, six hundred sixty thousand, six hundred fifty".