1572979336656 has 80 divisors (see below), whose sum is σ = 5001267648384. Its totient is φ = 414851692032.

The previous prime is 1572979336651. The next prime is 1572979336693. The reversal of 1572979336656 is 6566339792751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1572979336651) 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, 180052791 + ... + 180061526.

Almost surely, 2^{1572979336656} is an apocalyptic number.

1572979336656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1572979336656 is an abundant number, since it is smaller than the sum of its proper divisors (3428288311728).

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

1572979336656 is a wasteful number, since it uses less digits than its factorization.

1572979336656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360114348 (or 360114342 counting only the distinct ones).

The product of its digits is 385786800, while the sum is 69.

The spelling of 1572979336656 in words is "one trillion, five hundred seventy-two billion, nine hundred seventy-nine million, three hundred thirty-six thousand, six hundred fifty-six".