2164472642720 has 96 divisors (see below), whose sum is σ = 5601067088400. Its totient is φ = 786761629696.

The previous prime is 2164472642719. The next prime is 2164472642753. The reversal of 2164472642720 is 272462744612.

It can be written as a sum of positive squares in 8 ways, for example, as 1583359155856 + 581113486864 = 1258316^2 + 762308^2 .

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, 13641155 + ... + 13798914.

Almost surely, 2^{2164472642720} is an apocalyptic number.

2164472642720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2164472642720 is an abundant number, since it is smaller than the sum of its proper divisors (3436594445680).

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

2164472642720 is a wasteful number, since it uses less digits than its factorization.

2164472642720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27440130 (or 27440122 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 47.

The spelling of 2164472642720 in words is "two trillion, one hundred sixty-four billion, four hundred seventy-two million, six hundred forty-two thousand, seven hundred twenty".