66303436264 has 16 divisors (see below), whose sum is σ = 133881938820. Its totient is φ = 30601585920.

The previous prime is 66303436229. The next prime is 66303436291. The reversal of 66303436264 is 46263430366.

It can be written as a sum of positive squares in 2 ways, for example, as 65301713764 + 1001722500 = 255542^2 + 31650^2 .

It is a super-2 number, since 2×66303436264² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66303436264.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318766417 + ... + 318766624.

Almost surely, 2^66303436264 is an apocalyptic number.

It is an amenable number.

66303436264 is an abundant number, since it is smaller than the sum of its proper divisors (67578502556).

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

66303436264 is a wasteful number, since it uses less digits than its factorization.

66303436264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637533060 (or 637533056 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 43.

The spelling of 66303436264 in words is "sixty-six billion, three hundred three million, four hundred thirty-six thousand, two hundred sixty-four".