2660220500172 has 48 divisors (see below), whose sum is σ = 6375361235040. Its totient is φ = 862717588992.

The previous prime is 2660220500167. The next prime is 2660220500261. The reversal of 2660220500172 is 2710050220662.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6860704 + ... + 7238072.

It is an arithmetic number, because the mean of its divisors is an integer number (132820025730).

Almost surely, 2^{2660220500172} is an apocalyptic number.

It is an amenable number.

2660220500172 is an abundant number, since it is smaller than the sum of its proper divisors (3715140734868).

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

2660220500172 is a wasteful number, since it uses less digits than its factorization.

2660220500172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393290 (or 393288 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The spelling of 2660220500172 in words is "two trillion, six hundred sixty billion, two hundred twenty million, five hundred thousand, one hundred seventy-two".