20167271463397 has 2 divisors, whose sum is σ = 20167271463398. Its totient is φ = 20167271463396.

The previous prime is 20167271463359. The next prime is 20167271463421. The reversal of 20167271463397 is 79336417276102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18617231523361 + 1550039940036 = 4314769^2 + 1245006^2 .

It is a cyclic number.

It is not a de Polignac number, because 20167271463397 - 2²³ = 20167263074789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20167271163397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10083635731698 + 10083635731699.

It is an arithmetic number, because the mean of its divisors is an integer number (10083635731699).

Almost surely, 2^{20167271463397} is an apocalyptic number.

It is an amenable number.

20167271463397 is a deficient number, since it is larger than the sum of its proper divisors (1).

20167271463397 is an equidigital number, since it uses as much as digits as its factorization.

20167271463397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16003008, while the sum is 58.

The spelling of 20167271463397 in words is "twenty trillion, one hundred sixty-seven billion, two hundred seventy-one million, four hundred sixty-three thousand, three hundred ninety-seven".