51244540143516 has 72 divisors (see below), whose sum is σ = 130078540348848. Its totient is φ = 17009841600000.

The previous prime is 51244540143493. The next prime is 51244540143637. The reversal of 51244540143516 is 61534104544215.

51244540143516 is a `hidden beast` number, since 5 + 1 + 2 + 4 + 454 + 0 + 143 + 51 + 6 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42058326 + ... + 43259586.

It is an arithmetic number, because the mean of its divisors is an integer number (1806646393734).

Almost surely, 2^{51244540143516} is an apocalyptic number.

It is an amenable number.

51244540143516 is an abundant number, since it is smaller than the sum of its proper divisors (78834000205332).

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

51244540143516 is a wasteful number, since it uses less digits than its factorization.

51244540143516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206243 (or 1206238 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 45.

The spelling of 51244540143516 in words is "fifty-one trillion, two hundred forty-four billion, five hundred forty million, one hundred forty-three thousand, five hundred sixteen".