5105621665100 has 72 divisors (see below), whose sum is σ = 12088732782000. Its totient is φ = 1856231193600.

The previous prime is 5105621665093. The next prime is 5105621665163. The reversal of 5105621665100 is 15661265015.

It is a happy 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, 5284376 + ... + 6175424.

Almost surely, 2^{5105621665100} is an apocalyptic number.

5105621665100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5105621665100 is an abundant number, since it is smaller than the sum of its proper divisors (6983111116900).

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

5105621665100 is a wasteful number, since it uses less digits than its factorization.

5105621665100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896283 (or 896276 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 38.

The spelling of 5105621665100 in words is "five trillion, one hundred five billion, six hundred twenty-one million, six hundred sixty-five thousand, one hundred".