50665601012564 has 12 divisors (see below), whose sum is σ = 88665762129504. Its totient is φ = 25332526118424.

The previous prime is 50665601012561. The next prime is 50665601012569. The reversal of 50665601012564 is 46521010656605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50665601012561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68181224 + ... + 68920319.

It is an arithmetic number, because the mean of its divisors is an integer number (7388813510792).

Almost surely, 2^{50665601012564} is an apocalyptic number.

It is an amenable number.

50665601012564 is a deficient number, since it is larger than the sum of its proper divisors (38000161116940).

50665601012564 is a wasteful number, since it uses less digits than its factorization.

50665601012564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137193934 (or 137193932 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 47.

The spelling of 50665601012564 in words is "fifty trillion, six hundred sixty-five billion, six hundred one million, twelve thousand, five hundred sixty-four".