16978503360 has 896 divisors, whose sum is σ = 71525099520. Its totient is φ = 3312451584.

The previous prime is 16978503359. The next prime is 16978503401. The reversal of 16978503360 is 6330587961.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 87971424 + ... + 87971616.

It is an arithmetic number, because the mean of its divisors is an integer number (79827120).

Almost surely, 2^16978503360 is an apocalyptic number.

16978503360 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 16978503360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35762549760).

16978503360 is an abundant number, since it is smaller than the sum of its proper divisors (54546596160).

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

16978503360 is a wasteful number, since it uses less digits than its factorization.

16978503360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 48.

The spelling of 16978503360 in words is "sixteen billion, nine hundred seventy-eight million, five hundred three thousand, three hundred sixty".