15648004432 has 10 divisors (see below), whose sum is σ = 30318008618. Its totient is φ = 7824002208.

The previous prime is 15648004429. The next prime is 15648004481. The reversal of 15648004432 is 23440084651.

It can be written as a sum of positive squares in only one way, i.e., 10192113936 + 5455890496 = 100956^2 + 73864^2 .

It is a junction number, because it is equal to n+sod(n) for n = 15648004391 and 15648004400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489000123 + ... + 489000154.

Almost surely, 2^15648004432 is an apocalyptic number.

It is an amenable number.

15648004432 is a deficient number, since it is larger than the sum of its proper divisors (14670004186).

15648004432 is an equidigital number, since it uses as much as digits as its factorization.

15648004432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978000285 (or 978000279 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 37.

The spelling of 15648004432 in words is "fifteen billion, six hundred forty-eight million, four thousand, four hundred thirty-two".