66764034 has 32 divisors (see below), whose sum is σ = 149040000. Its totient is φ = 22153392.

The previous prime is 66764029. The next prime is 66764039. The reversal of 66764034 is 43046766.

66764034 is a `hidden beast` number, since 6 + 6 + 7 + 640 + 3 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (66764029) and next prime (66764039).

It is a self number, because there is not a number n which added to its sum of digits gives 66764034.

It is not an unprimeable number, because it can be changed into a prime (66764039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9667 + ... + 15065.

It is an arithmetic number, because the mean of its divisors is an integer number (4657500).

Almost surely, 2^66764034 is an apocalyptic number.

66764034 is an abundant number, since it is smaller than the sum of its proper divisors (82275966).

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

66764034 is a wasteful number, since it uses less digits than its factorization.

66764034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5639 (or 5633 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 66764034 is about 8170.9261408974. The cubic root of 66764034 is about 405.6774396097.

The spelling of 66764034 in words is "sixty-six million, seven hundred sixty-four thousand, thirty-four".