66795264 has 108 divisors (see below), whose sum is σ = 196579656. Its totient is φ = 21805056.

The previous prime is 66795263. The next prime is 66795277. The reversal of 66795264 is 46259766.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66795263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121839 + ... + 122385.

It is an arithmetic number, because the mean of its divisors is an integer number (1820182).

Almost surely, 2^66795264 is an apocalyptic number.

66795264 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66795264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98289828).

66795264 is an abundant number, since it is smaller than the sum of its proper divisors (129784392).

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

66795264 is a wasteful number, since it uses less digits than its factorization.

66795264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622 (or 605 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 66795264 is about 8172.8369615452. The cubic root of 66795264 is about 405.7406838984.

The spelling of 66795264 in words is "sixty-six million, seven hundred ninety-five thousand, two hundred sixty-four".