257103614620 has 24 divisors (see below), whose sum is σ = 540491400288. Its totient is φ = 102732148800.

The previous prime is 257103614563. The next prime is 257103614623. The reversal of 257103614620 is 26416301752.

It is a super-2 number, since 2×257103614620² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 257103614620.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257103614623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6811776 + ... + 6849415.

It is an arithmetic number, because the mean of its divisors is an integer number (22520475012).

Almost surely, 2^257103614620 is an apocalyptic number.

257103614620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

257103614620 is an abundant number, since it is smaller than the sum of its proper divisors (283387785668).

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

257103614620 is a wasteful number, since it uses less digits than its factorization.

257103614620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13662141 (or 13662139 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 257103614620 in words is "two hundred fifty-seven billion, one hundred three million, six hundred fourteen thousand, six hundred twenty".