555116555646 has 48 divisors (see below), whose sum is σ = 1314583440768. Its totient is φ = 168536332800.

The previous prime is 555116555641. The next prime is 555116555671. The reversal of 555116555646 is 646555611555.

555116555646 is a `hidden beast` number, since 5 + 5 + 5 + 11 + 65 + 5 + 564 + 6 = 666.

It is a super-2 number, since 2×555116555646² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 555116555592 and 555116555601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555116555641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29250295 + ... + 29269266.

It is an arithmetic number, because the mean of its divisors is an integer number (27387155016).

Almost surely, 2^555116555646 is an apocalyptic number.

555116555646 is an abundant number, since it is smaller than the sum of its proper divisors (759466885122).

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

555116555646 is a wasteful number, since it uses less digits than its factorization.

555116555646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58519617 (or 58519614 counting only the distinct ones).

The product of its digits is 13500000, while the sum is 54.

The spelling of 555116555646 in words is "five hundred fifty-five billion, one hundred sixteen million, five hundred fifty-five thousand, six hundred forty-six".