66032017327320 has 128 divisors (see below), whose sum is σ = 218017216189440. Its totient is φ = 15866100131840.

The previous prime is 66032017327183. The next prime is 66032017327459. The reversal of 66032017327320 is 2372371023066.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 221197104 + ... + 221495423.

It is an arithmetic number, because the mean of its divisors is an integer number (1703259501480).

Almost surely, 2^{66032017327320} is an apocalyptic number.

66032017327320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66032017327320 is an abundant number, since it is smaller than the sum of its proper divisors (151985198862120).

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

66032017327320 is a wasteful number, since it uses less digits than its factorization.

66032017327320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442692665 (or 442692661 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 42.

The spelling of 66032017327320 in words is "sixty-six trillion, thirty-two billion, seventeen million, three hundred twenty-seven thousand, three hundred twenty".