20432350152415 has 32 divisors (see below), whose sum is σ = 26277257483136. Its totient is φ = 15212084912640.

The previous prime is 20432350152407. The next prime is 20432350152419. The reversal of 20432350152415 is 51425105323402.

It is a happy number.

It is not a de Polignac number, because 20432350152415 - 2³ = 20432350152407 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20432350152419) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 155416249 + ... + 155547661.

It is an arithmetic number, because the mean of its divisors is an integer number (821164296348).

Almost surely, 2^{20432350152415} is an apocalyptic number.

20432350152415 is a deficient number, since it is larger than the sum of its proper divisors (5844907330721).

20432350152415 is a wasteful number, since it uses less digits than its factorization.

20432350152415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168019.

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 20432350152415 its reverse (51425105323402), we get a palindrome (71857455475817).

The spelling of 20432350152415 in words is "twenty trillion, four hundred thirty-two billion, three hundred fifty million, one hundred fifty-two thousand, four hundred fifteen".