20372409465 has 8 divisors (see below), whose sum is σ = 32595855168. Its totient is φ = 10865285040.

The previous prime is 20372409403. The next prime is 20372409467. The reversal of 20372409465 is 56490427302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20372409465 - 2⁸ = 20372409209 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (20372409467) 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, 679080301 + ... + 679080330.

It is an arithmetic number, because the mean of its divisors is an integer number (4074481896).

Almost surely, 2^20372409465 is an apocalyptic number.

It is an amenable number.

20372409465 is a deficient number, since it is larger than the sum of its proper divisors (12223445703).

20372409465 is a wasteful number, since it uses less digits than its factorization.

20372409465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1358160639.

The product of its (nonzero) digits is 362880, while the sum is 42.

The spelling of 20372409465 in words is "twenty billion, three hundred seventy-two million, four hundred nine thousand, four hundred sixty-five".