15623228355 has 48 divisors (see below), whose sum is σ = 29864288160. Its totient is φ = 6949006848.

The previous prime is 15623228353. The next prime is 15623228389. The reversal of 15623228355 is 55382232651.

It is not a de Polignac number, because 15623228355 - 2¹ = 15623228353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15623228351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 260050 + ... + 314439.

It is an arithmetic number, because the mean of its divisors is an integer number (622172670).

Almost surely, 2^15623228355 is an apocalyptic number.

15623228355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

15623228355 is a deficient number, since it is larger than the sum of its proper divisors (14241059805).

15623228355 is a wasteful number, since it uses less digits than its factorization.

15623228355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574548 (or 574541 counting only the distinct ones).

The product of its digits is 432000, while the sum is 42.

The spelling of 15623228355 in words is "fifteen billion, six hundred twenty-three million, two hundred twenty-eight thousand, three hundred fifty-five".