20345032366251 has 16 divisors (see below), whose sum is σ = 27608126592000. Its totient is φ = 13324372034688.

The previous prime is 20345032366231. The next prime is 20345032366261. The reversal of 20345032366251 is 15266323054302.

It is not a de Polignac number, because 20345032366251 - 2⁹ = 20345032365739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20345032366201) 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, 215641326 + ... + 215735651.

It is an arithmetic number, because the mean of its divisors is an integer number (1725507912000).

Almost surely, 2^{20345032366251} is an apocalyptic number.

20345032366251 is a deficient number, since it is larger than the sum of its proper divisors (7263094225749).

20345032366251 is a wasteful number, since it uses less digits than its factorization.

20345032366251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431377258.

The product of its (nonzero) digits is 777600, while the sum is 42.

The spelling of 20345032366251 in words is "twenty trillion, three hundred forty-five billion, thirty-two million, three hundred sixty-six thousand, two hundred fifty-one".