65612532572 has 24 divisors (see below), whose sum is σ = 120885349200. Its totient is φ = 31074437376.

The previous prime is 65612532571. The next prime is 65612532613. The reversal of 65612532572 is 27523521656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65612532571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407588 + ... + 545300.

It is an arithmetic number, because the mean of its divisors is an integer number (5036889550).

Almost surely, 2^65612532572 is an apocalyptic number.

It is an amenable number.

65612532572 is a deficient number, since it is larger than the sum of its proper divisors (55272816628).

65612532572 is a wasteful number, since it uses less digits than its factorization.

65612532572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144005 (or 144003 counting only the distinct ones).

The product of its digits is 756000, while the sum is 44.

The spelling of 65612532572 in words is "sixty-five billion, six hundred twelve million, five hundred thirty-two thousand, five hundred seventy-two".