20315017376 has 12 divisors (see below), whose sum is σ = 39995190522. Its totient is φ = 10157508672.

The previous prime is 20315017367. The next prime is 20315017381. The reversal of 20315017376 is 67371051302.

It can be written as a sum of positive squares in only one way, i.e., 13847640976 + 6467376400 = 117676^2 + 80420^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317422115 + ... + 317422178.

Almost surely, 2^20315017376 is an apocalyptic number.

It is an amenable number.

20315017376 is a deficient number, since it is larger than the sum of its proper divisors (19680173146).

20315017376 is an equidigital number, since it uses as much as digits as its factorization.

20315017376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634844303 (or 634844295 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 35.

Adding to 20315017376 its reverse (67371051302), we get a palindrome (87686068678).

The spelling of 20315017376 in words is "twenty billion, three hundred fifteen million, seventeen thousand, three hundred seventy-six".