515020056136461 has 12 divisors (see below), whose sum is σ = 771470372155392. Its totient is φ = 343346704090812.

The previous prime is 515020056136441. The next prime is 515020056136529. The reversal of 515020056136461 is 164631650020515.

515020056136461 is a `hidden beast` number, since 5 + 1 + 5 + 0 + 2 + 0 + 0 + 56 + 136 + 461 = 666.

It is not a de Polignac number, because 515020056136461 - 2²² = 515020051942157 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515020056136441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1059712049421 + ... + 1059712049906.

It is an arithmetic number, because the mean of its divisors is an integer number (64289197679616).

Almost surely, 2^{515020056136461} is an apocalyptic number.

It is an amenable number.

515020056136461 is a deficient number, since it is larger than the sum of its proper divisors (256450316018931).

515020056136461 is an equidigital number, since it uses as much as digits as its factorization.

515020056136461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2119424099342 (or 2119424099330 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The spelling of 515020056136461 in words is "five hundred fifteen trillion, twenty billion, fifty-six million, one hundred thirty-six thousand, four hundred sixty-one".