55622157712 has 160 divisors (see below), whose sum is σ = 124072058880. Its totient is φ = 23925888000.

The previous prime is 55622157697. The next prime is 55622157737. The reversal of 55622157712 is 21775122655.

55622157712 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53844748 + ... + 53845780.

It is an arithmetic number, because the mean of its divisors is an integer number (775450368).

Almost surely, 2^55622157712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55622157712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62036029440).

55622157712 is an abundant number, since it is smaller than the sum of its proper divisors (68449901168).

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

55622157712 is a wasteful number, since it uses less digits than its factorization.

55622157712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293 (or 1287 counting only the distinct ones).

The product of its digits is 294000, while the sum is 43.

The spelling of 55622157712 in words is "fifty-five billion, six hundred twenty-two million, one hundred fifty-seven thousand, seven hundred twelve".