1577652216564 has 12 divisors (see below), whose sum is σ = 3681188505344. Its totient is φ = 525884072184.

The previous prime is 1577652216541. The next prime is 1577652216593. The reversal of 1577652216564 is 4656122567751.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 65735509012 + ... + 65735509035.

Almost surely, 2^{1577652216564} is an apocalyptic number.

It is an amenable number.

1577652216564 is an abundant number, since it is smaller than the sum of its proper divisors (2103536288780).

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

1577652216564 is a wasteful number, since it uses less digits than its factorization.

1577652216564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131471018054 (or 131471018052 counting only the distinct ones).

The product of its digits is 21168000, while the sum is 57.

The spelling of 1577652216564 in words is "one trillion, five hundred seventy-seven billion, six hundred fifty-two million, two hundred sixteen thousand, five hundred sixty-four".