55611735678 has 40 divisors (see below), whose sum is σ = 126654315480. Its totient is φ = 18233352720.

The previous prime is 55611735649. The next prime is 55611735709. The reversal of 55611735678 is 87653711655.

It is a happy number.

55611735678 is a `hidden beast` number, since 5 + 5 + 6 + 1 + 1 + 73 + 567 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2803908 + ... + 2823671.

It is an arithmetic number, because the mean of its divisors is an integer number (3166357887).

Almost surely, 2^55611735678 is an apocalyptic number.

55611735678 is an abundant number, since it is smaller than the sum of its proper divisors (71042579802).

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

55611735678 is a wasteful number, since it uses less digits than its factorization.

55611735678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5627654 (or 5627645 counting only the distinct ones).

The product of its digits is 5292000, while the sum is 54.

The spelling of 55611735678 in words is "fifty-five billion, six hundred eleven million, seven hundred thirty-five thousand, six hundred seventy-eight".