20346599967 has 16 divisors (see below), whose sum is σ = 27344528640. Its totient is φ = 13456601600.

The previous prime is 20346599953. The next prime is 20346599969. The reversal of 20346599967 is 76999564302.

It is a cyclic number.

It is not a de Polignac number, because 20346599967 - 2⁴ = 20346599951 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20346599967.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20346599969) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1679542 + ... + 1691612.

It is an arithmetic number, because the mean of its divisors is an integer number (1709033040).

Almost surely, 2^20346599967 is an apocalyptic number.

20346599967 is a deficient number, since it is larger than the sum of its proper divisors (6997928673).

20346599967 is a wasteful number, since it uses less digits than its factorization.

20346599967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16494.

The product of its (nonzero) digits is 22044960, while the sum is 60.

The spelling of 20346599967 in words is "twenty billion, three hundred forty-six million, five hundred ninety-nine thousand, nine hundred sixty-seven".