20347368755 has 16 divisors (see below), whose sum is σ = 29373646080. Its totient is φ = 13218139872.

The previous prime is 20347368721. The next prime is 20347368773. The reversal of 20347368755 is 55786374302.

It is not a de Polignac number, because 20347368755 - 2⁸ = 20347368499 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15298109 + ... + 15299438.

It is an arithmetic number, because the mean of its divisors is an integer number (1835852880).

Almost surely, 2^20347368755 is an apocalyptic number.

20347368755 is a deficient number, since it is larger than the sum of its proper divisors (9026277325).

20347368755 is a wasteful number, since it uses less digits than its factorization.

20347368755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30597578.

The product of its (nonzero) digits is 4233600, while the sum is 50.

The spelling of 20347368755 in words is "twenty billion, three hundred forty-seven million, three hundred sixty-eight thousand, seven hundred fifty-five".