64970291733696 has 224 divisors, whose sum is σ = 205006319455680. Its totient is φ = 20103619018752.

The previous prime is 64970291733661. The next prime is 64970291733707. The reversal of 64970291733696 is 69633719207946.

64970291733696 is a `hidden beast` number, since 6 + 4 + 9 + 70 + 29 + 173 + 369 + 6 = 666.

It is a super-2 number, since 2×64970291733696² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

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, 13004041 + ... + 17292936.

Almost surely, 2^{64970291733696} is an apocalyptic number.

It is an amenable number.

64970291733696 is an abundant number, since it is smaller than the sum of its proper divisors (140036027721984).

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

64970291733696 is a wasteful number, since it uses less digits than its factorization.

64970291733696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30297088 (or 30297072 counting only the distinct ones).

The product of its (nonzero) digits is 555532992, while the sum is 72.

The spelling of 64970291733696 in words is "sixty-four trillion, nine hundred seventy billion, two hundred ninety-one million, seven hundred thirty-three thousand, six hundred ninety-six".