15662235648 has 240 divisors, whose sum is σ = 45464867840. Its totient is φ = 4777574400.

The previous prime is 15662235619. The next prime is 15662235653. The reversal of 15662235648 is 84653226651.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 15662235597 and 15662235606.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28950258 + ... + 28950798.

Almost surely, 2^15662235648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15662235648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22732433920).

15662235648 is an abundant number, since it is smaller than the sum of its proper divisors (29802632192).

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

15662235648 is an equidigital number, since it uses as much as digits as its factorization.

15662235648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622 (or 596 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 48.

The spelling of 15662235648 in words is "fifteen billion, six hundred sixty-two million, two hundred thirty-five thousand, six hundred forty-eight".