16401833620 has 48 divisors (see below), whose sum is σ = 35049712320. Its totient is φ = 6445472256.

The previous prime is 16401833603. The next prime is 16401833621. The reversal of 16401833620 is 2633810461.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16401833621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2454604 + ... + 2461276.

It is an arithmetic number, because the mean of its divisors is an integer number (730202340).

Almost surely, 2^16401833620 is an apocalyptic number.

16401833620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16401833620 is an abundant number, since it is smaller than the sum of its proper divisors (18647878700).

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

16401833620 is a wasteful number, since it uses less digits than its factorization.

16401833620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8824 (or 8822 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 16401833620 in words is "sixteen billion, four hundred one million, eight hundred thirty-three thousand, six hundred twenty".