65529979080 has 32 divisors (see below), whose sum is σ = 196589937600. Its totient is φ = 17474661056.

The previous prime is 65529979069. The next prime is 65529979087. The reversal of 65529979080 is 8097992556.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is not an unprimeable number, because it can be changed into a prime (65529979087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273041460 + ... + 273041699.

It is an arithmetic number, because the mean of its divisors is an integer number (6143435550).

Almost surely, 2^65529979080 is an apocalyptic number.

65529979080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65529979080 is an abundant number, since it is smaller than the sum of its proper divisors (131059958520).

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

65529979080 is a wasteful number, since it uses less digits than its factorization.

65529979080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546083173 (or 546083169 counting only the distinct ones).

The product of its (nonzero) digits is 12247200, while the sum is 60.

The spelling of 65529979080 in words is "sixty-five billion, five hundred twenty-nine million, nine hundred seventy-nine thousand, eighty".