50151651561 has 12 divisors (see below), whose sum is σ = 79026845040. Its totient is φ = 30394940280.

The previous prime is 50151651553. The next prime is 50151651577. The reversal of 50151651561 is 16515615105.

It is a happy number.

50151651561 is a `hidden beast` number, since 501 + 51 + 6 + 51 + 56 + 1 = 666.

It is not a de Polignac number, because 50151651561 - 2³ = 50151651553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50151651161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 253291071 + ... + 253291268.

It is an arithmetic number, because the mean of its divisors is an integer number (6585570420).

Almost surely, 2^50151651561 is an apocalyptic number.

It is an amenable number.

50151651561 is a deficient number, since it is larger than the sum of its proper divisors (28875193479).

50151651561 is a wasteful number, since it uses less digits than its factorization.

50151651561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506582356 (or 506582353 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 36.

The spelling of 50151651561 in words is "fifty billion, one hundred fifty-one million, six hundred fifty-one thousand, five hundred sixty-one".