20453035616 has 24 divisors (see below), whose sum is σ = 43364369664. Its totient is φ = 9439862400.

The previous prime is 20453035579. The next prime is 20453035619. The reversal of 20453035616 is 61653035402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20453035619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24582560 + ... + 24583391.

It is an arithmetic number, because the mean of its divisors is an integer number (1806848736).

Almost surely, 2^20453035616 is an apocalyptic number.

20453035616 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20453035616 is an abundant number, since it is smaller than the sum of its proper divisors (22911334048).

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

20453035616 is a wasteful number, since it uses less digits than its factorization.

20453035616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49165974 (or 49165966 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

The spelling of 20453035616 in words is "twenty billion, four hundred fifty-three million, thirty-five thousand, six hundred sixteen".