66527912 has 32 divisors (see below), whose sum is σ = 139406400. Its totient is φ = 29500800.

The previous prime is 66527863. The next prime is 66527927. The reversal of 66527912 is 21972566.

It is a happy number.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5612 + ... + 12827.

It is an arithmetic number, because the mean of its divisors is an integer number (4356450).

Almost surely, 2^66527912 is an apocalyptic number.

It is an amenable number.

66527912 is an abundant number, since it is smaller than the sum of its proper divisors (72878488).

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

66527912 is a wasteful number, since it uses less digits than its factorization.

66527912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18497 (or 18493 counting only the distinct ones).

The product of its digits is 45360, while the sum is 38.

The square root of 66527912 is about 8156.4644301315. The cubic root of 66527912 is about 405.1986263425.

The spelling of 66527912 in words is "sixty-six million, five hundred twenty-seven thousand, nine hundred twelve".