1655116315556 has 72 divisors (see below), whose sum is σ = 3385706216760. Its totient is φ = 704978334720.

The previous prime is 1655116315499. The next prime is 1655116315577. The reversal of 1655116315556 is 6555136115561.

It can be written as a sum of positive squares in 4 ways, for example, as 931282900900 + 723833414656 = 965030^2 + 850784^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1445006 + ... + 2323418.

It is an arithmetic number, because the mean of its divisors is an integer number (47023697455).

Almost surely, 2^{1655116315556} is an apocalyptic number.

It is an amenable number.

1655116315556 is an abundant number, since it is smaller than the sum of its proper divisors (1730589901204).

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

1655116315556 is a wasteful number, since it uses less digits than its factorization.

1655116315556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878685 (or 878672 counting only the distinct ones).

The product of its digits is 2025000, while the sum is 50.

The spelling of 1655116315556 in words is "one trillion, six hundred fifty-five billion, one hundred sixteen million, three hundred fifteen thousand, five hundred fifty-six".