16979773440 has 288 divisors, whose sum is σ = 62304016320. Its totient is φ = 3867279360.

The previous prime is 16979773387. The next prime is 16979773471. The reversal of 16979773440 is 4437797961.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60426100 + ... + 60426380.

It is an arithmetic number, because the mean of its divisors is an integer number (216333390).

Almost surely, 2^16979773440 is an apocalyptic number.

16979773440 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 16979773440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31152008160).

16979773440 is an abundant number, since it is smaller than the sum of its proper divisors (45324242880).

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

16979773440 is an frugal number, since it uses more digits than its factorization.

16979773440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 8001504, while the sum is 57.

The spelling of 16979773440 in words is "sixteen billion, nine hundred seventy-nine million, seven hundred seventy-three thousand, four hundred forty".