3164808978181 has 2 divisors, whose sum is σ = 3164808978182. Its totient is φ = 3164808978180.

The previous prime is 3164808978179. The next prime is 3164808978223. The reversal of 3164808978181 is 1818798084613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3164808978081 + 100 = 1778991^2 + 10^2 .

It is a cyclic number.

It is not a de Polignac number, because 3164808978181 - 2¹ = 3164808978179 is a prime.

It is a super-2 number, since 2×3164808978181² (a number of 26 digits) contains 22 as substring.

Together with 3164808978179, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3164808979181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1582404489090 + 1582404489091.

It is an arithmetic number, because the mean of its divisors is an integer number (1582404489091).

Almost surely, 2^{3164808978181} is an apocalyptic number.

It is an amenable number.

3164808978181 is a deficient number, since it is larger than the sum of its proper divisors (1).

3164808978181 is an equidigital number, since it uses as much as digits as its factorization.

3164808978181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18579456, while the sum is 64.

The spelling of 3164808978181 in words is "three trillion, one hundred sixty-four billion, eight hundred eight million, nine hundred seventy-eight thousand, one hundred eighty-one".