20332144417 has 16 divisors (see below), whose sum is σ = 22855230720. Its totient is φ = 17946574272.

The previous prime is 20332144411. The next prime is 20332144433. The reversal of 20332144417 is 71444123302.

It is a cyclic number.

It is not a de Polignac number, because 20332144417 - 2³ = 20332144409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20332144411) 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, 1184188 + ... + 1201234.

It is an arithmetic number, because the mean of its divisors is an integer number (1428451920).

Almost surely, 2^20332144417 is an apocalyptic number.

It is an amenable number.

20332144417 is a deficient number, since it is larger than the sum of its proper divisors (2523086303).

20332144417 is a wasteful number, since it uses less digits than its factorization.

20332144417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21072.

The product of its (nonzero) digits is 16128, while the sum is 31.

Adding to 20332144417 its reverse (71444123302), we get a palindrome (91776267719).

The spelling of 20332144417 in words is "twenty billion, three hundred thirty-two million, one hundred forty-four thousand, four hundred seventeen".