20372615145 has 48 divisors (see below), whose sum is σ = 36116720640. Its totient is φ = 10619526528.

The previous prime is 20372615093. The next prime is 20372615149. The reversal of 20372615145 is 54151627302.

20372615145 is a `hidden beast` number, since 2 + 0 + 37 + 2 + 615 + 1 + 4 + 5 = 666.

It is not a de Polignac number, because 20372615145 - 2¹³ = 20372606953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20372615149) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 611016 + ... + 643494.

It is an arithmetic number, because the mean of its divisors is an integer number (752431680).

Almost surely, 2^20372615145 is an apocalyptic number.

It is an amenable number.

20372615145 is a deficient number, since it is larger than the sum of its proper divisors (15744105495).

20372615145 is a wasteful number, since it uses less digits than its factorization.

20372615145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32806 (or 32803 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The spelling of 20372615145 in words is "twenty billion, three hundred seventy-two million, six hundred fifteen thousand, one hundred forty-five".