164803188761 has 2 divisors, whose sum is σ = 164803188762. Its totient is φ = 164803188760.

The previous prime is 164803188751. The next prime is 164803188773. The reversal of 164803188761 is 167881308461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143826011536 + 20977177225 = 379244^2 + 144835^2 .

It is a cyclic number.

It is not a de Polignac number, because 164803188761 - 2²² = 164798994457 is a prime.

It is not a weakly prime, because it can be changed into another prime (164803188701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82401594380 + 82401594381.

It is an arithmetic number, because the mean of its divisors is an integer number (82401594381).

Almost surely, 2^164803188761 is an apocalyptic number.

It is an amenable number.

164803188761 is a deficient number, since it is larger than the sum of its proper divisors (1).

164803188761 is an equidigital number, since it uses as much as digits as its factorization.

164803188761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1548288, while the sum is 53.

The spelling of 164803188761 in words is "one hundred sixty-four billion, eight hundred three million, one hundred eighty-eight thousand, seven hundred sixty-one".