10556973855 has 48 divisors (see below), whose sum is σ = 18760135680. Its totient is φ = 5489348544.

The previous prime is 10556973853. The next prime is 10556973881. The reversal of 10556973855 is 55837965501.

10556973855 is a `hidden beast` number, since 1 + 0 + 5 + 569 + 73 + 8 + 5 + 5 = 666.

It is not a de Polignac number, because 10556973855 - 2¹ = 10556973853 is a prime.

It is a super-2 number, since 2×10556973855² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10556973853) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 546756 + ... + 565734.

It is an arithmetic number, because the mean of its divisors is an integer number (390836160).

Almost surely, 2^10556973855 is an apocalyptic number.

10556973855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10556973855 is a deficient number, since it is larger than the sum of its proper divisors (8203161825).

10556973855 is a wasteful number, since it uses less digits than its factorization.

10556973855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19300 (or 19297 counting only the distinct ones).

The product of its (nonzero) digits is 5670000, while the sum is 54.

The spelling of 10556973855 in words is "ten billion, five hundred fifty-six million, nine hundred seventy-three thousand, eight hundred fifty-five".