66652022600 has 48 divisors (see below), whose sum is σ = 154991354100. Its totient is φ = 26656439040.

The previous prime is 66652022599. The next prime is 66652022609. The reversal of 66652022600 is 622025666.

It can be written as a sum of positive squares in 6 ways, for example, as 14112964804 + 52539057796 = 118798^2 + 229214^2 .

It is not an unprimeable number, because it can be changed into a prime (66652022609) 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, 1375586 + ... + 1423214.

Almost surely, 2^66652022600 is an apocalyptic number.

It is an amenable number.

66652022600 is an abundant number, since it is smaller than the sum of its proper divisors (88339331500).

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

66652022600 is a wasteful number, since it uses less digits than its factorization.

66652022600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54642 (or 54633 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 66652022600 in words is "sixty-six billion, six hundred fifty-two million, twenty-two thousand, six hundred".