55416213616 has 20 divisors (see below), whose sum is σ = 112037128272. Its totient is φ = 26503406336.

The previous prime is 55416213577. The next prime is 55416213617. The reversal of 55416213616 is 61631261455.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55416213617) 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, 75293401 + ... + 75294136.

Almost surely, 2^55416213616 is an apocalyptic number.

It is an amenable number.

55416213616 is an abundant number, since it is smaller than the sum of its proper divisors (56620914656).

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

55416213616 is a wasteful number, since it uses less digits than its factorization.

55416213616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150587568 (or 150587562 counting only the distinct ones).

The product of its digits is 129600, while the sum is 40.

The spelling of 55416213616 in words is "fifty-five billion, four hundred sixteen million, two hundred thirteen thousand, six hundred sixteen".