66937090 has 16 divisors (see below), whose sum is σ = 131440320. Its totient is φ = 24340720.

The previous prime is 66937067. The next prime is 66937097. The reversal of 66937090 is 9073966.

66937090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (66937097) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 304150 + ... + 304369.

It is an arithmetic number, because the mean of its divisors is an integer number (8215020).

Almost surely, 2^66937090 is an apocalyptic number.

66937090 is a deficient number, since it is larger than the sum of its proper divisors (64503230).

66937090 is a wasteful number, since it uses less digits than its factorization.

66937090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608537.

The product of its (nonzero) digits is 61236, while the sum is 40.

The square root of 66937090 is about 8181.5090295128. The cubic root of 66937090 is about 406.0276498435.

The spelling of 66937090 in words is "sixty-six million, nine hundred thirty-seven thousand, ninety".