20372260671 has 40 divisors (see below), whose sum is σ = 34816915584. Its totient is φ = 11628988560.

The previous prime is 20372260661. The next prime is 20372260723. The reversal of 20372260671 is 17606227302.

It is a happy number.

20372260671 is a `hidden beast` number, since 20 + 3 + 7 + 22 + 606 + 7 + 1 = 666.

It is not a de Polignac number, because 20372260671 - 2⁹ = 20372260159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20372260661) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 532056 + ... + 569058.

Almost surely, 2^20372260671 is an apocalyptic number.

20372260671 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20372260671 is a deficient number, since it is larger than the sum of its proper divisors (14444654913).

20372260671 is an equidigital number, since it uses as much as digits as its factorization.

20372260671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37993 (or 37984 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

Adding to 20372260671 its reverse (17606227302), we get a palindrome (37978487973).

The spelling of 20372260671 in words is "twenty billion, three hundred seventy-two million, two hundred sixty thousand, six hundred seventy-one".