16885290240 has 1296 divisors, whose sum is σ = 76755470400. Its totient is φ = 3502227456.

The previous prime is 16885290203. The next prime is 16885290259. The reversal of 16885290240 is 4209258861.

16885290240 is a `hidden beast` number, since 1 + 6 + 88 + 529 + 0 + 2 + 40 = 666.

It is a super-2 number, since 2×16885290240² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 286191331 + ... + 286191389.

It is an arithmetic number, because the mean of its divisors is an integer number (59224900).

Almost surely, 2^16885290240 is an apocalyptic number.

16885290240 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 16885290240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38377735200).

16885290240 is an abundant number, since it is smaller than the sum of its proper divisors (59870180160).

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

16885290240 is a wasteful number, since it uses less digits than its factorization.

16885290240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 16885290240 in words is "sixteen billion, eight hundred eighty-five million, two hundred ninety thousand, two hundred forty".