32161393967 has 2 divisors, whose sum is σ = 32161393968. Its totient is φ = 32161393966.

The previous prime is 32161393961. The next prime is 32161393969. The reversal of 32161393967 is 76939316123.

It is a strong prime.

It is an emirp because it is prime and its reverse (76939316123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32161393967 - 2¹⁰ = 32161392943 is a prime.

Together with 32161393969, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32161393961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16080696983 + 16080696984.

It is an arithmetic number, because the mean of its divisors is an integer number (16080696984).

Almost surely, 2^32161393967 is an apocalyptic number.

32161393967 is a deficient number, since it is larger than the sum of its proper divisors (1).

32161393967 is an equidigital number, since it uses as much as digits as its factorization.

32161393967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1102248, while the sum is 50.

The spelling of 32161393967 in words is "thirty-two billion, one hundred sixty-one million, three hundred ninety-three thousand, nine hundred sixty-seven".