66052664 has 32 divisors (see below), whose sum is σ = 131664000. Its totient is φ = 30976992.

The previous prime is 66052643. The next prime is 66052673. The reversal of 66052664 is 46625066.

It is a congruent number.

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, 13547 + ... + 17765.

It is an arithmetic number, because the mean of its divisors is an integer number (4114500).

Almost surely, 2^66052664 is an apocalyptic number.

It is an amenable number.

66052664 is a deficient number, since it is larger than the sum of its proper divisors (65611336).

66052664 is a wasteful number, since it uses less digits than its factorization.

66052664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4347 (or 4343 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 66052664 is about 8127.2790034550. The cubic root of 66052664 is about 404.2314623055.

The spelling of 66052664 in words is "sixty-six million, fifty-two thousand, six hundred sixty-four".