16042521590 has 16 divisors (see below), whose sum is σ = 28903774320. Its totient is φ = 6410956320.

The previous prime is 16042521589. The next prime is 16042521601. The reversal of 16042521590 is 9512524061.

It is a happy number.

It is a super-2 number, since 2×16042521590² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16042521590.

It is a congruent 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, 745400 + ... + 766619.

It is an arithmetic number, because the mean of its divisors is an integer number (1806485895).

Almost surely, 2^16042521590 is an apocalyptic number.

16042521590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16042521590 is a deficient number, since it is larger than the sum of its proper divisors (12861252730).

16042521590 is a wasteful number, since it uses less digits than its factorization.

16042521590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1513087.

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 16042521590 in words is "sixteen billion, forty-two million, five hundred twenty-one thousand, five hundred ninety".