66754962276960 has 144 divisors (see below), whose sum is σ = 223375039460496. Its totient is φ = 16754186575872.

The previous prime is 66754962276911. The next prime is 66754962276979. The reversal of 66754962276960 is 6967226945766.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 240471727 + ... + 240749166.

It is an arithmetic number, because the mean of its divisors is an integer number (1551215551809).

Almost surely, 2^{66754962276960} is an apocalyptic number.

66754962276960 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66754962276960 is an abundant number, since it is smaller than the sum of its proper divisors (156620077183536).

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

66754962276960 is a wasteful number, since it uses less digits than its factorization.

66754962276960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481220945 (or 481220920 counting only the distinct ones).

The product of its (nonzero) digits is 2469035520, while the sum is 75.

The spelling of 66754962276960 in words is "sixty-six trillion, seven hundred fifty-four billion, nine hundred sixty-two million, two hundred seventy-six thousand, nine hundred sixty".