1055261664 has 36 divisors (see below), whose sum is σ = 3000901176. Its totient is φ = 351753792.

The previous prime is 1055261611. The next prime is 1055261671. The reversal of 1055261664 is 4661625501.

1055261664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×1055261664² = 2227154359016097792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1831764 + ... + 1832339.

It is an arithmetic number, because the mean of its divisors is an integer number (83358366).

Almost surely, 2^1055261664 is an apocalyptic number.

It is an amenable number.

1055261664 is an abundant number, since it is smaller than the sum of its proper divisors (1945639512).

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

1055261664 is a wasteful number, since it uses less digits than its factorization.

1055261664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3664119 (or 3664108 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 1055261664 is about 32484.7912722246. The cubic root of 1055261664 is about 1018.0912862997.

The spelling of 1055261664 in words is "one billion, fifty-five million, two hundred sixty-one thousand, six hundred sixty-four".