66526072 has 16 divisors (see below), whose sum is σ = 124891200. Its totient is φ = 33221760.

The previous prime is 66526069. The next prime is 66526091. The reversal of 66526072 is 27062566.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2329 + ... + 11767.

It is an arithmetic number, because the mean of its divisors is an integer number (7805700).

Almost surely, 2^66526072 is an apocalyptic number.

It is an amenable number.

66526072 is a deficient number, since it is larger than the sum of its proper divisors (58365128).

66526072 is a wasteful number, since it uses less digits than its factorization.

66526072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10326 (or 10322 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 66526072 is about 8156.3516353821. The cubic root of 66526072 is about 405.1948907057.

The spelling of 66526072 in words is "sixty-six million, five hundred twenty-six thousand, seventy-two".