55111334567424 has 80 divisors (see below), whose sum is σ = 147640264168320. Its totient is φ = 18267816581120.

The previous prime is 55111334567351. The next prime is 55111334567441. The reversal of 55111334567424 is 42476543311155.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99947892 + ... + 100497779.

It is an arithmetic number, because the mean of its divisors is an integer number (1845503302104).

Almost surely, 2^{55111334567424} is an apocalyptic number.

It is an amenable number.

55111334567424 is an abundant number, since it is smaller than the sum of its proper divisors (92528929600896).

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

55111334567424 is a wasteful number, since it uses less digits than its factorization.

55111334567424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200445871 (or 200445855 counting only the distinct ones).

The product of its digits is 6048000, while the sum is 51.

Adding to 55111334567424 its reverse (42476543311155), we get a palindrome (97587877878579).

The spelling of 55111334567424 in words is "fifty-five trillion, one hundred eleven billion, three hundred thirty-four million, five hundred sixty-seven thousand, four hundred twenty-four".