15552978048 has 512 divisors, whose sum is σ = 50893920000. Its totient is φ = 4658135040.

The previous prime is 15552978017. The next prime is 15552978079. The reversal of 15552978048 is 84087925551.

15552978048 is a `hidden beast` number, since 1 + 5 + 5 + 529 + 78 + 0 + 48 = 666.

It is an interprime number because it is at equal distance from previous prime (15552978017) and next prime (15552978079).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 15552977985 and 15552978003.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 142687818 + ... + 142687926.

Almost surely, 2^15552978048 is an apocalyptic number.

15552978048 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15552978048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25446960000).

15552978048 is an abundant number, since it is smaller than the sum of its proper divisors (35340941952).

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

15552978048 is a wasteful number, since it uses less digits than its factorization.

15552978048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 4032000, while the sum is 54.

The spelling of 15552978048 in words is "fifteen billion, five hundred fifty-two million, nine hundred seventy-eight thousand, forty-eight".