55803431626488 has 320 divisors, whose sum is σ = 192385739367360. Its totient is φ = 14716245970944.

The previous prime is 55803431626451. The next prime is 55803431626493. The reversal of 55803431626488 is 88462613430855.

55803431626488 is a `hidden beast` number, since 5 + 5 + 8 + 0 + 3 + 431 + 62 + 64 + 88 = 666.

It is a super-2 number, since 2×55803431626488² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 982201570 + ... + 982258382.

It is an arithmetic number, because the mean of its divisors is an integer number (601205435523).

Almost surely, 2^{55803431626488} 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 55803431626488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96192869683680).

55803431626488 is an abundant number, since it is smaller than the sum of its proper divisors (136582307740872).

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

55803431626488 is a wasteful number, since it uses less digits than its factorization.

55803431626488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73508 (or 73495 counting only the distinct ones).

The product of its (nonzero) digits is 132710400, while the sum is 63.

The spelling of 55803431626488 in words is "fifty-five trillion, eight hundred three billion, four hundred thirty-one million, six hundred twenty-six thousand, four hundred eighty-eight".