64118999931652 has 24 divisors (see below), whose sum is σ = 117132768289152. Its totient is φ = 30653587536000.

The previous prime is 64118999931643. The next prime is 64118999931659. The reversal of 64118999931652 is 25613999981146.

64118999931652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×64118999931652² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64118999931659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136367749 + ... + 136837132.

It is an arithmetic number, because the mean of its divisors is an integer number (4880532012048).

Almost surely, 2^{64118999931652} is an apocalyptic number.

It is an amenable number.

64118999931652 is a deficient number, since it is larger than the sum of its proper divisors (53013768357500).

64118999931652 is a wasteful number, since it uses less digits than its factorization.

64118999931652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273207459 (or 273207457 counting only the distinct ones).

The product of its digits is 226748160, while the sum is 73.

The spelling of 64118999931652 in words is "sixty-four trillion, one hundred eighteen billion, nine hundred ninety-nine million, nine hundred thirty-one thousand, six hundred fifty-two".