51611105155 has 16 divisors (see below), whose sum is σ = 62141661504. Its totient is φ = 41150229120.

The previous prime is 51611105123. The next prime is 51611105177. The reversal of 51611105155 is 55150111615.

It is not a de Polignac number, because 51611105155 - 2⁵ = 51611105123 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1817194 + ... + 1845376.

It is an arithmetic number, because the mean of its divisors is an integer number (3883853844).

Almost surely, 2^51611105155 is an apocalyptic number.

51611105155 is a deficient number, since it is larger than the sum of its proper divisors (10530556349).

51611105155 is a wasteful number, since it uses less digits than its factorization.

51611105155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29406.

The product of its (nonzero) digits is 3750, while the sum is 31.

The spelling of 51611105155 in words is "fifty-one billion, six hundred eleven million, one hundred five thousand, one hundred fifty-five".