16530370572 has 48 divisors (see below), whose sum is σ = 40277099520. Its totient is φ = 5266723968.

The previous prime is 16530370559. The next prime is 16530370627. The reversal of 16530370572 is 27507303561.

It is a self number, because there is not a number n which added to its sum of digits gives 16530370572.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 371704 + ... + 413792.

It is an arithmetic number, because the mean of its divisors is an integer number (839106240).

Almost surely, 2^16530370572 is an apocalyptic number.

16530370572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16530370572 is an abundant number, since it is smaller than the sum of its proper divisors (23746728948).

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

16530370572 is a wasteful number, since it uses less digits than its factorization.

16530370572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43542 (or 43540 counting only the distinct ones).

The product of its (nonzero) digits is 132300, while the sum is 39.

The spelling of 16530370572 in words is "sixteen billion, five hundred thirty million, three hundred seventy thousand, five hundred seventy-two".