51051601551264 has 96 divisors (see below), whose sum is σ = 135683305571520. Its totient is φ = 16805246515200.

The previous prime is 51051601551259. The next prime is 51051601551317. The reversal of 51051601551264 is 46215510615015.

51051601551264 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3245374 + ... + 10612994.

It is an arithmetic number, because the mean of its divisors is an integer number (1413367766370).

Almost surely, 2^{51051601551264} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51051601551264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67841652785760).

51051601551264 is an abundant number, since it is smaller than the sum of its proper divisors (84631704020256).

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

51051601551264 is a wasteful number, since it uses less digits than its factorization.

51051601551264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7368534 (or 7368526 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 42.

The spelling of 51051601551264 in words is "fifty-one trillion, fifty-one billion, six hundred one million, five hundred fifty-one thousand, two hundred sixty-four".