65442156 has 48 divisors (see below), whose sum is σ = 173107200. Its totient is φ = 19075392.

The previous prime is 65442149. The next prime is 65442187. The reversal of 65442156 is 65124456.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8076 + ... + 14003.

It is an arithmetic number, because the mean of its divisors is an integer number (3606400).

Almost surely, 2^65442156 is an apocalyptic number.

It is an amenable number.

65442156 is an abundant number, since it is smaller than the sum of its proper divisors (107665044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65442156 is a wasteful number, since it uses less digits than its factorization.

65442156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22118 (or 22116 counting only the distinct ones).

The product of its digits is 28800, while the sum is 33.

The square root of 65442156 is about 8089.6326245386. The cubic root of 65442156 is about 402.9822025813.

The spelling of 65442156 in words is "sixty-five million, four hundred forty-two thousand, one hundred fifty-six".