51100161528 has 64 divisors (see below), whose sum is σ = 137615012640. Its totient is φ = 15718823424.

The previous prime is 51100161509. The next prime is 51100161557. The reversal of 51100161528 is 82516100115.

It is a super-2 number, since 2×51100161528² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51100161495 and 51100161504.

It is a congruent 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, 1231650 + ... + 1272462.

Almost surely, 2^51100161528 is an apocalyptic number.

It is an amenable number.

51100161528 is an abundant number, since it is smaller than the sum of its proper divisors (86514851112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51100161528 is a wasteful number, since it uses less digits than its factorization.

51100161528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44848 (or 44844 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 30.

The spelling of 51100161528 in words is "fifty-one billion, one hundred million, one hundred sixty-one thousand, five hundred twenty-eight".