1015720672120 has 96 divisors (see below), whose sum is σ = 2870880012000. Its totient is φ = 316588250880.

The previous prime is 1015720672111. The next prime is 1015720672121. The reversal of 1015720672120 is 212760275101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1015720672121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14956095 + ... + 15023854.

It is an arithmetic number, because the mean of its divisors is an integer number (29905000125).

Almost surely, 2^{1015720672120} is an apocalyptic number.

1015720672120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1015720672120 is an abundant number, since it is smaller than the sum of its proper divisors (1855159339880).

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

1015720672120 is a wasteful number, since it uses less digits than its factorization.

1015720672120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29979989 (or 29979974 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 34.

The spelling of 1015720672120 in words is "one trillion, fifteen billion, seven hundred twenty million, six hundred seventy-two thousand, one hundred twenty".