20997167041 has 16 divisors (see below), whose sum is σ = 22416609600. Its totient is φ = 19598492160.

The previous prime is 20997166979. The next prime is 20997167057. The reversal of 20997167041 is 14076179902.

It is not a de Polignac number, because 20997167041 - 2⁷ = 20997166913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20997166982 and 20997167000.

It is not an unprimeable number, because it can be changed into a prime (20997167441) 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, 2723410 + ... + 2731108.

It is an arithmetic number, because the mean of its divisors is an integer number (1401038100).

Almost surely, 2^20997167041 is an apocalyptic number.

It is an amenable number.

20997167041 is a deficient number, since it is larger than the sum of its proper divisors (1419442559).

20997167041 is a wasteful number, since it uses less digits than its factorization.

20997167041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9024.

The product of its (nonzero) digits is 190512, while the sum is 46.

The spelling of 20997167041 in words is "twenty billion, nine hundred ninety-seven million, one hundred sixty-seven thousand, forty-one".