64191056706312 has 64 divisors (see below), whose sum is σ = 171505517209920. Its totient is φ = 19950161645568.

The previous prime is 64191056706311. The next prime is 64191056706323. The reversal of 64191056706312 is 21360765019146.

It is a super-2 number, since 2×64191056706312² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (64191056706311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 735148033 + ... + 735235344.

It is an arithmetic number, because the mean of its divisors is an integer number (2679773706405).

Almost surely, 2^{64191056706312} is an apocalyptic number.

It is an amenable number.

64191056706312 is an abundant number, since it is smaller than the sum of its proper divisors (107314460503608).

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

64191056706312 is a wasteful number, since it uses less digits than its factorization.

64191056706312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470383510 (or 1470383506 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 51.

The spelling of 64191056706312 in words is "sixty-four trillion, one hundred ninety-one billion, fifty-six million, seven hundred six thousand, three hundred twelve".