20346345351 has 24 divisors (see below), whose sum is σ = 30352439936. Its totient is φ = 13120081920.

The previous prime is 20346345337. The next prime is 20346345361. The reversal of 20346345351 is 15354364302.

20346345351 is a `hidden beast` number, since 203 + 4 + 63 + 45 + 351 = 666.

It is not a de Polignac number, because 20346345351 - 2⁵ = 20346345319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20346345361) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 572271 + ... + 606783.

Almost surely, 2^20346345351 is an apocalyptic number.

20346345351 is a deficient number, since it is larger than the sum of its proper divisors (10006094585).

20346345351 is a wasteful number, since it uses less digits than its factorization.

20346345351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36663 (or 36660 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

The spelling of 20346345351 in words is "twenty billion, three hundred forty-six million, three hundred forty-five thousand, three hundred fifty-one".