15642604222 has 16 divisors (see below), whose sum is σ = 27117197280. Its totient is φ = 6628647168.

The previous prime is 15642604207. The next prime is 15642604261. The reversal of 15642604222 is 22240624651.

15642604222 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×15642604222² (a number of 21 digits) contains 22 as substring.

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, 6275883 + ... + 6278374.

It is an arithmetic number, because the mean of its divisors is an integer number (1694824830).

Almost surely, 2^15642604222 is an apocalyptic number.

15642604222 is a deficient number, since it is larger than the sum of its proper divisors (11474593058).

15642604222 is a wasteful number, since it uses less digits than its factorization.

15642604222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12554355.

The product of its (nonzero) digits is 46080, while the sum is 34.

The spelling of 15642604222 in words is "fifteen billion, six hundred forty-two million, six hundred four thousand, two hundred twenty-two".