55678698620 has 12 divisors (see below), whose sum is σ = 116925267144. Its totient is φ = 22271479440.

The previous prime is 55678698619. The next prime is 55678698623. The reversal of 55678698620 is 2689687655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55678698623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1391967446 + ... + 1391967485.

It is an arithmetic number, because the mean of its divisors is an integer number (9743772262).

Almost surely, 2^55678698620 is an apocalyptic number.

It is an amenable number.

55678698620 is an abundant number, since it is smaller than the sum of its proper divisors (61246568524).

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

55678698620 is a wasteful number, since it uses less digits than its factorization.

55678698620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2783934940 (or 2783934938 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 62.

The spelling of 55678698620 in words is "fifty-five billion, six hundred seventy-eight million, six hundred ninety-eight thousand, six hundred twenty".