55416821008694 has 16 divisors (see below), whose sum is σ = 86739675455232. Its totient is φ = 26503604285928.

The previous prime is 55416821008667. The next prime is 55416821008781. The reversal of 55416821008694 is 49680012861455.

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, 12234437 + ... + 16140479.

It is an arithmetic number, because the mean of its divisors is an integer number (5421229715952).

Almost surely, 2^{55416821008694} is an apocalyptic number.

55416821008694 is a deficient number, since it is larger than the sum of its proper divisors (31322854446538).

55416821008694 is a wasteful number, since it uses less digits than its factorization.

55416821008694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4214491.

The product of its (nonzero) digits is 16588800, while the sum is 59.

The spelling of 55416821008694 in words is "fifty-five trillion, four hundred sixteen billion, eight hundred twenty-one million, eight thousand, six hundred ninety-four".