64945151000556 has 12 divisors (see below), whose sum is σ = 151538685667992. Its totient is φ = 21648383666848.

The previous prime is 64945151000537. The next prime is 64945151000567. The reversal of 64945151000556 is 65500015154946.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 64945151000499 and 64945151000508.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2706047958345 + ... + 2706047958368.

It is an arithmetic number, because the mean of its divisors is an integer number (12628223805666).

Almost surely, 2^{64945151000556} is an apocalyptic number.

It is an amenable number.

64945151000556 is an abundant number, since it is smaller than the sum of its proper divisors (86593534667436).

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

64945151000556 is a wasteful number, since it uses less digits than its factorization.

64945151000556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5412095916720 (or 5412095916718 counting only the distinct ones).

The product of its (nonzero) digits is 3240000, while the sum is 51.

The spelling of 64945151000556 in words is "sixty-four trillion, nine hundred forty-five billion, one hundred fifty-one million, five hundred fifty-six", and thus it is an aban number.