15680154120740 has 24 divisors (see below), whose sum is σ = 32932192015800. Its totient is φ = 6271324817408.

The previous prime is 15680154120737. The next prime is 15680154120809. The reversal of 15680154120740 is 4702145108651.

It can be written as a sum of positive squares in 4 ways, for example, as 3360798229504 + 12319355891236 = 1833248^2 + 3509894^2 .

It is a junction number, because it is equal to n+sod(n) for n = 15680154120691 and 15680154120700.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45877415 + ... + 46217934.

It is an arithmetic number, because the mean of its divisors is an integer number (1372174667325).

Almost surely, 2^{15680154120740} is an apocalyptic number.

15680154120740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15680154120740 is an abundant number, since it is smaller than the sum of its proper divisors (17252037895060).

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

15680154120740 is a wasteful number, since it uses less digits than its factorization.

15680154120740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92103871 (or 92103869 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 44.

The spelling of 15680154120740 in words is "fifteen trillion, six hundred eighty billion, one hundred fifty-four million, one hundred twenty thousand, seven hundred forty".