51657020110622 has 32 divisors (see below), whose sum is σ = 85113449809920. Its totient is φ = 23404281769440.

The previous prime is 51657020110607. The next prime is 51657020110627. The reversal of 51657020110622 is 22601102075615.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51657020110627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20364608 + ... + 22760300.

It is an arithmetic number, because the mean of its divisors is an integer number (2659795306560).

Almost surely, 2^{51657020110622} is an apocalyptic number.

51657020110622 is a deficient number, since it is larger than the sum of its proper divisors (33456429699298).

51657020110622 is a wasteful number, since it uses less digits than its factorization.

51657020110622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2420408.

The product of its (nonzero) digits is 50400, while the sum is 38.

The spelling of 51657020110622 in words is "fifty-one trillion, six hundred fifty-seven billion, twenty million, one hundred ten thousand, six hundred twenty-two".