51100644655151 has 32 divisors (see below), whose sum is σ = 67817978188800. Its totient is φ = 37369089918720.

The previous prime is 51100644655121. The next prime is 51100644655169. The reversal of 51100644655151 is 15155644600115.

It is a happy number.

It is not a de Polignac number, because 51100644655151 - 2²² = 51100640460847 is a prime.

It is a super-2 number, since 2×51100644655151² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51100644655121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 360356291 + ... + 360498068.

It is an arithmetic number, because the mean of its divisors is an integer number (2119311818400).

Almost surely, 2^{51100644655151} is an apocalyptic number.

51100644655151 is a deficient number, since it is larger than the sum of its proper divisors (16717333533649).

51100644655151 is a wasteful number, since it uses less digits than its factorization.

51100644655151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720854439.

The product of its (nonzero) digits is 360000, while the sum is 44.

The spelling of 51100644655151 in words is "fifty-one trillion, one hundred billion, six hundred forty-four million, six hundred fifty-five thousand, one hundred fifty-one".