10161556055 has 24 divisors (see below), whose sum is σ = 14801437152. Its totient is φ = 6664967232.

The previous prime is 10161556019. The next prime is 10161556063. The reversal of 10161556055 is 55065516101.

It is not a de Polignac number, because 10161556055 - 2²² = 10157361751 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 896012 + ... + 907281.

It is an arithmetic number, because the mean of its divisors is an integer number (616726548).

Almost surely, 2^10161556055 is an apocalyptic number.

10161556055 is a deficient number, since it is larger than the sum of its proper divisors (4639881097).

10161556055 is a wasteful number, since it uses less digits than its factorization.

10161556055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1803335 (or 1803328 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 35.

The spelling of 10161556055 in words is "ten billion, one hundred sixty-one million, five hundred fifty-six thousand, fifty-five".