1055661110 has 16 divisors (see below), whose sum is σ = 2171645856. Its totient is φ = 361940928.

The previous prime is 1055661067. The next prime is 1055661143. The reversal of 1055661110 is 111665501.

It is a super-2 number, since 2×1055661110² = 2228840758332864200, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1055661110.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7540367 + ... + 7540506.

It is an arithmetic number, because the mean of its divisors is an integer number (135727866).

Almost surely, 2^1055661110 is an apocalyptic number.

1055661110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1055661110 is an abundant number, since it is smaller than the sum of its proper divisors (1115984746).

1055661110 is a wasteful number, since it uses less digits than its factorization.

1055661110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15080887.

The product of its (nonzero) digits is 900, while the sum is 26.

The square root of 1055661110 is about 32490.9388907123. The cubic root of 1055661110 is about 1018.2197287528.

The spelling of 1055661110 in words is "one billion, fifty-five million, six hundred sixty-one thousand, one hundred ten".