20233454160 has 80 divisors (see below), whose sum is σ = 66024970560. Its totient is φ = 5111608320.

The previous prime is 20233454149. The next prime is 20233454161. The reversal of 20233454160 is 6145433202.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20233454161) 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, 2214021 + ... + 2223140.

It is an arithmetic number, because the mean of its divisors is an integer number (825312132).

Almost surely, 2^20233454160 is an apocalyptic number.

20233454160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20233454160 is an abundant number, since it is smaller than the sum of its proper divisors (45791516400).

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

20233454160 is a wasteful number, since it uses less digits than its factorization.

20233454160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4437196 (or 4437190 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 20233454160 its reverse (6145433202), we get a palindrome (26378887362).

The spelling of 20233454160 in words is "twenty billion, two hundred thirty-three million, four hundred fifty-four thousand, one hundred sixty".