54656078620 has 96 divisors (see below), whose sum is σ = 136153704960. Its totient is φ = 18167880960.

The previous prime is 54656078591. The next prime is 54656078647. The reversal of 54656078620 is 2687065645.

It is a happy number.

It is a super-2 number, since 2×54656078620² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 201811 + ... + 387349.

It is an arithmetic number, because the mean of its divisors is an integer number (1418267760).

Almost surely, 2^54656078620 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 54656078620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68076852480).

54656078620 is an abundant number, since it is smaller than the sum of its proper divisors (81497626340).

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

54656078620 is a wasteful number, since it uses less digits than its factorization.

54656078620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185675 (or 185673 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 49.

The spelling of 54656078620 in words is "fifty-four billion, six hundred fifty-six million, seventy-eight thousand, six hundred twenty".