65613500427 has 16 divisors (see below), whose sum is σ = 87980780160. Its totient is φ = 43494662400.

The previous prime is 65613500423. The next prime is 65613500429. The reversal of 65613500427 is 72400531656.

65613500427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 65613500427 - 2² = 65613500423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65613500423) 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, 643099 + ... + 738107.

It is an arithmetic number, because the mean of its divisors is an integer number (5498798760).

Almost surely, 2^65613500427 is an apocalyptic number.

65613500427 is a deficient number, since it is larger than the sum of its proper divisors (22367279733).

65613500427 is a wasteful number, since it uses less digits than its factorization.

65613500427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96314.

The product of its (nonzero) digits is 151200, while the sum is 39.

The spelling of 65613500427 in words is "sixty-five billion, six hundred thirteen million, five hundred thousand, four hundred twenty-seven".