16531480290 has 256 divisors, whose sum is σ = 46445414400. Its totient is φ = 3753195264.

The previous prime is 16531480249. The next prime is 16531480349. The reversal of 16531480290 is 9208413561.

It is a Harshad number since it is a multiple of its sum of digits (39).

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, 53848317 + ... + 53848623.

It is an arithmetic number, because the mean of its divisors is an integer number (181427400).

Almost surely, 2^16531480290 is an apocalyptic number.

16531480290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16531480290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23222707200).

16531480290 is an abundant number, since it is smaller than the sum of its proper divisors (29913934110).

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

16531480290 is a wasteful number, since it uses less digits than its factorization.

16531480290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418 (or 392 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The spelling of 16531480290 in words is "sixteen billion, five hundred thirty-one million, four hundred eighty thousand, two hundred ninety".