20372235417 has 6 divisors (see below), whose sum is σ = 29426562282. Its totient is φ = 13581490272.

The previous prime is 20372235407. The next prime is 20372235437. The reversal of 20372235417 is 71453227302.

20372235417 is a `hidden beast` number, since 2 + 0 + 3 + 7 + 2 + 235 + 417 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11197660761 + 9174574656 = 105819^2 + 95784^2 .

It is not a de Polignac number, because 20372235417 - 2³² = 16077268121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20372235407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1131790848 + ... + 1131790865.

It is an arithmetic number, because the mean of its divisors is an integer number (4904427047).

Almost surely, 2^20372235417 is an apocalyptic number.

It is an amenable number.

20372235417 is a deficient number, since it is larger than the sum of its proper divisors (9054326865).

20372235417 is a wasteful number, since it uses less digits than its factorization.

20372235417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2263581719 (or 2263581716 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The spelling of 20372235417 in words is "twenty billion, three hundred seventy-two million, two hundred thirty-five thousand, four hundred seventeen".