51006611551116 has 48 divisors (see below), whose sum is σ = 133743088491264. Its totient is φ = 15011979318336.

The previous prime is 51006611551097. The next prime is 51006611551153. The reversal of 51006611551116 is 61115511660015.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7107941166 + ... + 7107948341.

It is an arithmetic number, because the mean of its divisors is an integer number (2786314343568).

Almost surely, 2^{51006611551116} is an apocalyptic number.

It is an amenable number.

51006611551116 is an abundant number, since it is smaller than the sum of its proper divisors (82736476940148).

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

51006611551116 is a wasteful number, since it uses less digits than its factorization.

51006611551116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14215889550 (or 14215889548 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 39.

The spelling of 51006611551116 in words is "fifty-one trillion, six billion, six hundred eleven million, five hundred fifty-one thousand, one hundred sixteen".