2125926656 has 72 divisors (see below), whose sum is σ = 4911486720. Its totient is φ = 899518464.

The previous prime is 2125926643. The next prime is 2125926661. The reversal of 2125926656 is 6566295212.

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, 134060 + ... + 149076.

Almost surely, 2^2125926656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2125926656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2455743360).

2125926656 is an abundant number, since it is smaller than the sum of its proper divisors (2785560064).

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

2125926656 is an equidigital number, since it uses as much as digits as its factorization.

2125926656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15119 (or 15105 counting only the distinct ones).

The product of its digits is 388800, while the sum is 44.

The square root of 2125926656 is about 46107.7721864763. The cubic root of 2125926656 is about 1285.8276460942.

The spelling of 2125926656 in words is "two billion, one hundred twenty-five million, nine hundred twenty-six thousand, six hundred fifty-six".