15556055622 has 16 divisors (see below), whose sum is σ = 31146273792. Its totient is φ = 5179658120.

The previous prime is 15556055621. The next prime is 15556055623. The reversal of 15556055622 is 22655065551.

It is an interprime number because it is at equal distance from previous prime (15556055621) and next prime (15556055623).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15556055621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1417518 + ... + 1428449.

It is an arithmetic number, because the mean of its divisors is an integer number (1946642112).

Almost surely, 2^15556055622 is an apocalyptic number.

15556055622 is an abundant number, since it is smaller than the sum of its proper divisors (15590218170).

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

15556055622 is a wasteful number, since it uses less digits than its factorization.

15556055622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2846883.

The product of its (nonzero) digits is 450000, while the sum is 42.

The spelling of 15556055622 in words is "fifteen billion, five hundred fifty-six million, fifty-five thousand, six hundred twenty-two".