66055015080 has 64 divisors (see below), whose sum is σ = 220183387200. Its totient is φ = 17614670400.

The previous prime is 66055015073. The next prime is 66055015097. The reversal of 66055015080 is 8051055066.

66055015080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30579946 + ... + 30582105.

It is an arithmetic number, because the mean of its divisors is an integer number (3440365425).

Almost surely, 2^66055015080 is an apocalyptic number.

66055015080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66055015080 is an abundant number, since it is smaller than the sum of its proper divisors (154128372120).

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

66055015080 is a wasteful number, since it uses less digits than its factorization.

66055015080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61162071 (or 61162061 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The spelling of 66055015080 in words is "sixty-six billion, fifty-five million, fifteen thousand, eighty".