16531104620 has 24 divisors (see below), whose sum is σ = 34936443024. Its totient is φ = 6570323136.

The previous prime is 16531104613. The next prime is 16531104647. The reversal of 16531104620 is 2640113561.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2629202 + ... + 2635481.

It is an arithmetic number, because the mean of its divisors is an integer number (1455685126).

Almost surely, 2^16531104620 is an apocalyptic number.

16531104620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16531104620 is an abundant number, since it is smaller than the sum of its proper divisors (18405338404).

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

16531104620 is a wasteful number, since it uses less digits than its factorization.

16531104620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5264849 (or 5264847 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The spelling of 16531104620 in words is "sixteen billion, five hundred thirty-one million, one hundred four thousand, six hundred twenty".