66959596080 has 400 divisors, whose sum is σ = 256571640864. Its totient is φ = 16079523840.

The previous prime is 66959596069. The next prime is 66959596103. The reversal of 66959596080 is 8069595966.

66959596080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 66959595999 and 66959596017.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3444147 + ... + 3463533.

Almost surely, 2^66959596080 is an apocalyptic number.

66959596080 is a gapful number since it is divisible by the number (60) 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 66959596080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128285820432).

66959596080 is an abundant number, since it is smaller than the sum of its proper divisors (189612044784).

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

66959596080 is a wasteful number, since it uses less digits than its factorization.

66959596080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19466 (or 19451 counting only the distinct ones).

The product of its (nonzero) digits is 31492800, while the sum is 63.

The spelling of 66959596080 in words is "sixty-six billion, nine hundred fifty-nine million, five hundred ninety-six thousand, eighty".