1318577680156 has 96 divisors (see below), whose sum is σ = 2627680849920. Its totient is φ = 573518400000.

The previous prime is 1318577680141. The next prime is 1318577680157. The reversal of 1318577680156 is 6510867758131.

It is a self number, because there is not a number n which added to its sum of digits gives 1318577680156.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1318577680157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111445161 + ... + 111456991.

It is an arithmetic number, because the mean of its divisors is an integer number (27371675520).

Almost surely, 2^{1318577680156} is an apocalyptic number.

It is an amenable number.

1318577680156 is a deficient number, since it is larger than the sum of its proper divisors (1309103169764).

1318577680156 is a wasteful number, since it uses less digits than its factorization.

1318577680156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12787 (or 12785 counting only the distinct ones).

The product of its (nonzero) digits is 8467200, while the sum is 58.

The spelling of 1318577680156 in words is "one trillion, three hundred eighteen billion, five hundred seventy-seven million, six hundred eighty thousand, one hundred fifty-six".