16235943580 has 24 divisors (see below), whose sum is σ = 34272150192. Its totient is φ = 6460726272.

The previous prime is 16235943571. The next prime is 16235943583. The reversal of 16235943580 is 8534953261.

It is a self number, because there is not a number n which added to its sum of digits gives 16235943580.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16235943583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2099242 + ... + 2106961.

It is an arithmetic number, because the mean of its divisors is an integer number (1428006258).

Almost surely, 2^16235943580 is an apocalyptic number.

16235943580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16235943580 is an abundant number, since it is smaller than the sum of its proper divisors (18036206612).

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

16235943580 is a wasteful number, since it uses less digits than its factorization.

16235943580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4206405 (or 4206403 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 46.

The spelling of 16235943580 in words is "sixteen billion, two hundred thirty-five million, nine hundred forty-three thousand, five hundred eighty".