51527230161 has 16 divisors (see below), whose sum is σ = 74952516288. Its totient is φ = 31227033600.

The previous prime is 51527230147. The next prime is 51527230171. The reversal of 51527230161 is 16103272515.

It is not a de Polignac number, because 51527230161 - 2²² = 51523035857 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (51527230171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1142145 + ... + 1186401.

It is an arithmetic number, because the mean of its divisors is an integer number (4684532268).

Almost surely, 2^51527230161 is an apocalyptic number.

It is an amenable number.

51527230161 is a deficient number, since it is larger than the sum of its proper divisors (23425286127).

51527230161 is a wasteful number, since it uses less digits than its factorization.

51527230161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79552.

The product of its (nonzero) digits is 12600, while the sum is 33.

The spelling of 51527230161 in words is "fifty-one billion, five hundred twenty-seven million, two hundred thirty thousand, one hundred sixty-one".