2656125140 has 48 divisors (see below), whose sum is σ = 6014675520. Its totient is φ = 981976320.

The previous prime is 2656125137. The next prime is 2656125163. The reversal of 2656125140 is 415216562.

It is a junction number, because it is equal to n+sod(n) for n = 2656125097 and 2656125106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69662 + ... + 100821.

It is an arithmetic number, because the mean of its divisors is an integer number (125305740).

Almost surely, 2^2656125140 is an apocalyptic number.

2656125140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2656125140 is an abundant number, since it is smaller than the sum of its proper divisors (3358550380).

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

2656125140 is a wasteful number, since it uses less digits than its factorization.

2656125140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170552 (or 170550 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 2656125140 is about 51537.6089860599. The cubic root of 2656125140 is about 1384.8928640296.

The spelling of 2656125140 in words is "two billion, six hundred fifty-six million, one hundred twenty-five thousand, one hundred forty".