15623228356 has 24 divisors (see below), whose sum is σ = 28003879904. Its totient is φ = 7622475840.

The previous prime is 15623228353. The next prime is 15623228389. The reversal of 15623228356 is 65382232651.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is not an unprimeable number, because it can be changed into a prime (15623228351) 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, 133711 + ... + 221641.

Almost surely, 2^15623228356 is an apocalyptic number.

It is an amenable number.

15623228356 is a deficient number, since it is larger than the sum of its proper divisors (12380651548).

15623228356 is a wasteful number, since it uses less digits than its factorization.

15623228356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89011 (or 89009 counting only the distinct ones).

The product of its digits is 518400, while the sum is 43.

The spelling of 15623228356 in words is "fifteen billion, six hundred twenty-three million, two hundred twenty-eight thousand, three hundred fifty-six".