1357632880656 has 160 divisors (see below), whose sum is σ = 3821815388160. Its totient is φ = 412803955200.

The previous prime is 1357632880619. The next prime is 1357632880691. The reversal of 1357632880656 is 6560882367531.

It is a self number, because there is not a number n which added to its sum of digits gives 1357632880656.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19502071 + ... + 19571561.

It is an arithmetic number, because the mean of its divisors is an integer number (23886346176).

Almost surely, 2^{1357632880656} is an apocalyptic number.

1357632880656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1357632880656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1910907694080).

1357632880656 is an abundant number, since it is smaller than the sum of its proper divisors (2464182507504).

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

1357632880656 is a wasteful number, since it uses less digits than its factorization.

1357632880656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69885 (or 69879 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 60.

The spelling of 1357632880656 in words is "one trillion, three hundred fifty-seven billion, six hundred thirty-two million, eight hundred eighty thousand, six hundred fifty-six".