66957060039336 has 224 divisors, whose sum is σ = 198987951240000. Its totient is φ = 21053578413312.

The previous prime is 66957060039319. The next prime is 66957060039361. The reversal of 66957060039336 is 63393006075966.

66957060039336 is a `hidden beast` number, since 6 + 6 + 95 + 70 + 60 + 0 + 393 + 36 = 666.

It is a super-2 number, since 2×66957060039336² (a number of 28 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 24521565 + ... + 27114963.

Almost surely, 2^{66957060039336} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66957060039336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99493975620000).

66957060039336 is an abundant number, since it is smaller than the sum of its proper divisors (132030891200664).

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

66957060039336 is a wasteful number, since it uses less digits than its factorization.

66957060039336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2593675 (or 2593656 counting only the distinct ones).

The product of its (nonzero) digits is 99202320, while the sum is 63.

The spelling of 66957060039336 in words is "sixty-six trillion, nine hundred fifty-seven billion, sixty million, thirty-nine thousand, three hundred thirty-six".