54121122616656 has 80 divisors (see below), whose sum is σ = 140180729000000. Its totient is φ = 17992965279744.

The previous prime is 54121122616651. The next prime is 54121122616657. The reversal of 54121122616656 is 65661622112145.

It is a happy number.

It is a super-2 number, since 2×54121122616656² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54121122616651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31968570 + ... + 33618918.

It is an arithmetic number, because the mean of its divisors is an integer number (1752259112500).

Almost surely, 2^{54121122616656} is an apocalyptic number.

It is an amenable number.

54121122616656 is an abundant number, since it is smaller than the sum of its proper divisors (86059606383344).

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

54121122616656 is a wasteful number, since it uses less digits than its factorization.

54121122616656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652156 (or 1652150 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 48.

The spelling of 54121122616656 in words is "fifty-four trillion, one hundred twenty-one billion, one hundred twenty-two million, six hundred sixteen thousand, six hundred fifty-six".