2175625621020 has 96 divisors (see below), whose sum is σ = 6256901480256. Its totient is φ = 564440832000.

The previous prime is 2175625620991. The next prime is 2175625621157. The reversal of 2175625621020 is 201265265712.

It is a self number, because there is not a number n which added to its sum of digits gives 2175625621020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33802870 + ... + 33867170.

It is an arithmetic number, because the mean of its divisors is an integer number (65176057086).

Almost surely, 2^{2175625621020} is an apocalyptic number.

2175625621020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2175625621020 is an abundant number, since it is smaller than the sum of its proper divisors (4081275859236).

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

2175625621020 is a wasteful number, since it uses less digits than its factorization.

2175625621020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79591 (or 79589 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The spelling of 2175625621020 in words is "two trillion, one hundred seventy-five billion, six hundred twenty-five million, six hundred twenty-one thousand, twenty".