66664962 has 48 divisors (see below), whose sum is σ = 177777600. Its totient is φ = 17581536.

The previous prime is 66664957. The next prime is 66664979. The reversal of 66664962 is 26946666.

66664962 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×66664962² = 8888434316922888, which contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 18712 + ... + 21987.

It is an arithmetic number, because the mean of its divisors is an integer number (3703700).

Almost surely, 2^66664962 is an apocalyptic number.

66664962 is an abundant number, since it is smaller than the sum of its proper divisors (111112638).

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

66664962 is a wasteful number, since it uses less digits than its factorization.

66664962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40727 (or 40724 counting only the distinct ones).

The product of its digits is 559872, while the sum is 45.

The square root of 66664962 is about 8164.8614195221. The cubic root of 66664962 is about 405.4766769664.

It can be divided in two parts, 6666 and 4962, that added together give a triangular number (11628 = T₁₅₂).

The spelling of 66664962 in words is "sixty-six million, six hundred sixty-four thousand, nine hundred sixty-two".