20167911361 has 16 divisors (see below), whose sum is σ = 22885757440. Its totient is φ = 17618705280.

The previous prime is 20167911349. The next prime is 20167911383. The reversal of 20167911361 is 16311976102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20167911361 - 2⁷ = 20167911233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20167911361.

It is not an unprimeable number, because it can be changed into a prime (20167911311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203581 + ... + 285973.

It is an arithmetic number, because the mean of its divisors is an integer number (1430359840).

Almost surely, 2^20167911361 is an apocalyptic number.

It is an amenable number.

20167911361 is a deficient number, since it is larger than the sum of its proper divisors (2717846079).

20167911361 is a wasteful number, since it uses less digits than its factorization.

20167911361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83416.

The product of its (nonzero) digits is 13608, while the sum is 37.

The spelling of 20167911361 in words is "twenty billion, one hundred sixty-seven million, nine hundred eleven thousand, three hundred sixty-one".