15399098880 has 480 divisors, whose sum is σ = 55094098752. Its totient is φ = 3665756160.

The previous prime is 15399098867. The next prime is 15399098881. The reversal of 15399098880 is 8889099351.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is not an unprimeable number, because it can be changed into a prime (15399098881) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67837327 + ... + 67837553.

Almost surely, 2^15399098880 is an apocalyptic number.

15399098880 is a gapful number since it is divisible by the number (10) 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 15399098880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27547049376).

15399098880 is an abundant number, since it is smaller than the sum of its proper divisors (39694999872).

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

15399098880 is a wasteful number, since it uses less digits than its factorization.

15399098880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 60.

The spelling of 15399098880 in words is "fifteen billion, three hundred ninety-nine million, ninety-eight thousand, eight hundred eighty".