15622420636 has 6 divisors (see below), whose sum is σ = 27339236120. Its totient is φ = 7811210316.

The previous prime is 15622420621. The next prime is 15622420637. The reversal of 15622420636 is 63602422651.

15622420636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 15622420595 and 15622420604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15622420637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1952802576 + ... + 1952802583.

Almost surely, 2^15622420636 is an apocalyptic number.

It is an amenable number.

15622420636 is a deficient number, since it is larger than the sum of its proper divisors (11716815484).

15622420636 is a wasteful number, since it uses less digits than its factorization.

15622420636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3905605163 (or 3905605161 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 15622420636 in words is "fifteen billion, six hundred twenty-two million, four hundred twenty thousand, six hundred thirty-six".