2061437660625 has 80 divisors (see below), whose sum is σ = 4095956874240. Its totient is φ = 901398696000.

The previous prime is 2061437660621. The next prime is 2061437660629. The reversal of 2061437660625 is 5260667341602.

It is an interprime number because it is at equal distance from previous prime (2061437660621) and next prime (2061437660629).

It is not a de Polignac number, because 2061437660625 - 2² = 2061437660621 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2061437660621) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3112515 + ... + 3716264.

It is an arithmetic number, because the mean of its divisors is an integer number (51199460928).

Almost surely, 2^{2061437660625} is an apocalyptic number.

2061437660625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2061437660625 is a deficient number, since it is larger than the sum of its proper divisors (2034519213615).

2061437660625 is an equidigital number, since it uses as much as digits as its factorization.

2061437660625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6828832 (or 6828817 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 48.

The spelling of 2061437660625 in words is "two trillion, sixty-one billion, four hundred thirty-seven million, six hundred sixty thousand, six hundred twenty-five".