50121661621115 has 32 divisors (see below), whose sum is σ = 72359867773440. Its totient is φ = 32558534150400.

The previous prime is 50121661621091. The next prime is 50121661621181. The reversal of 50121661621115 is 51112616612105.

It is not a de Polignac number, because 50121661621115 - 2⁶ = 50121661621051 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10813655 + ... + 14736975.

It is an arithmetic number, because the mean of its divisors is an integer number (2261245867920).

Almost surely, 2^{50121661621115} is an apocalyptic number.

50121661621115 is a deficient number, since it is larger than the sum of its proper divisors (22238206152325).

50121661621115 is a wasteful number, since it uses less digits than its factorization.

50121661621115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3942563.

The product of its (nonzero) digits is 21600, while the sum is 38.

The spelling of 50121661621115 in words is "fifty trillion, one hundred twenty-one billion, six hundred sixty-one million, six hundred twenty-one thousand, one hundred fifteen".