55639700793654 has 16 divisors (see below), whose sum is σ = 111279511054848. Its totient is φ = 18546548686632.

The previous prime is 55639700793641. The next prime is 55639700793661. The reversal of 55639700793654 is 45639700793655.

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, 3014259 + ... + 10971105.

It is an arithmetic number, because the mean of its divisors is an integer number (6954969440928).

Almost surely, 2^{55639700793654} is an apocalyptic number.

55639700793654 is an abundant number, since it is smaller than the sum of its proper divisors (55639810261194).

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

55639700793654 is a wasteful number, since it uses less digits than its factorization.

55639700793654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9122299.

The product of its (nonzero) digits is 642978000, while the sum is 69.

Subtracting from 55639700793654 its reverse (45639700793655), we obtain a palindrome (9999999999999).

The spelling of 55639700793654 in words is "fifty-five trillion, six hundred thirty-nine billion, seven hundred million, seven hundred ninety-three thousand, six hundred fifty-four".