66652700 has 18 divisors (see below), whose sum is σ = 144636576. Its totient is φ = 26661040.

The previous prime is 66652673. The next prime is 66652753. The reversal of 66652700 is 725666.

66652700 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 333164 + ... + 333363.

Almost surely, 2^66652700 is an apocalyptic number.

It is an amenable number.

66652700 is an abundant number, since it is smaller than the sum of its proper divisors (77983876).

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

66652700 is a wasteful number, since it uses less digits than its factorization.

66652700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666541 (or 666534 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 66652700 is about 8164.1104843087. The cubic root of 66652700 is about 405.4518150313.

The spelling of 66652700 in words is "sixty-six million, six hundred fifty-two thousand, seven hundred".