20450404441651 has 2 divisors, whose sum is σ = 20450404441652. Its totient is φ = 20450404441650.

The previous prime is 20450404441627. The next prime is 20450404441661. The reversal of 20450404441651 is 15614440405402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20450404441651 - 2⁵ = 20450404441619 is a prime.

It is not a weakly prime, because it can be changed into another prime (20450404441661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10225202220825 + 10225202220826.

It is an arithmetic number, because the mean of its divisors is an integer number (10225202220826).

Almost surely, 2^{20450404441651} is an apocalyptic number.

20450404441651 is a deficient number, since it is larger than the sum of its proper divisors (1).

20450404441651 is an equidigital number, since it uses as much as digits as its factorization.

20450404441651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 307200, while the sum is 40.

The spelling of 20450404441651 in words is "twenty trillion, four hundred fifty billion, four hundred four million, four hundred forty-one thousand, six hundred fifty-one".