2561370025620 has 96 divisors (see below), whose sum is σ = 8204335405056. Its totient is φ = 584888054400.

The previous prime is 2561370025607. The next prime is 2561370025651. The reversal of 2561370025620 is 265200731652.

It is a happy number.

2561370025620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 2524546 + ... + 3390585.

It is an arithmetic number, because the mean of its divisors is an integer number (85461827136).

Almost surely, 2^{2561370025620} is an apocalyptic number.

2561370025620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2561370025620 is an abundant number, since it is smaller than the sum of its proper divisors (5642965379436).

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

2561370025620 is a wasteful number, since it uses less digits than its factorization.

2561370025620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5916181 (or 5916179 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 39.

The spelling of 2561370025620 in words is "two trillion, five hundred sixty-one billion, three hundred seventy million, twenty-five thousand, six hundred twenty".