125616200251640 has 64 divisors (see below), whose sum is σ = 329107672935360. Its totient is φ = 42255799971840.

The previous prime is 125616200251613. The next prime is 125616200251643. The reversal of 125616200251640 is 46152002616521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125616200251643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4232336921 + ... + 4232366600.

It is an arithmetic number, because the mean of its divisors is an integer number (5142307389615).

Almost surely, 2^{125616200251640} is an apocalyptic number.

125616200251640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125616200251640 is an abundant number, since it is smaller than the sum of its proper divisors (203491472683720).

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

125616200251640 is a wasteful number, since it uses less digits than its factorization.

125616200251640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8464703592 (or 8464703588 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 125616200251640 in words is "one hundred twenty-five trillion, six hundred sixteen billion, two hundred million, two hundred fifty-one thousand, six hundred forty".