66957052 has 12 divisors (see below), whose sum is σ = 117731656. Its totient is φ = 33319440.

The previous prime is 66957049. The next prime is 66957061. The reversal of 66957052 is 25075966.

It is a junction number, because it is equal to n+sod(n) for n = 66956996 and 66957014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38823 + ... + 40510.

Almost surely, 2^66957052 is an apocalyptic number.

It is an amenable number.

66957052 is a deficient number, since it is larger than the sum of its proper divisors (50774604).

66957052 is a wasteful number, since it uses less digits than its factorization.

66957052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79548 (or 79546 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 66957052 is about 8182.7288846692. The cubic root of 66957052 is about 406.0680077296.

The spelling of 66957052 in words is "sixty-six million, nine hundred fifty-seven thousand, fifty-two".