164466761 has 2 divisors, whose sum is σ = 164466762. Its totient is φ = 164466760.

The previous prime is 164466733. The next prime is 164466769. The reversal of 164466761 is 167664461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 147161161 + 17305600 = 12131^2 + 4160^2 .

It is a cyclic number.

It is not a de Polignac number, because 164466761 - 2¹⁸ = 164204617 is a prime.

It is a super-2 number, since 2×164466761² = 54098630947662242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (164466769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82233380 + 82233381.

It is an arithmetic number, because the mean of its divisors is an integer number (82233381).

Almost surely, 2^164466761 is an apocalyptic number.

It is an amenable number.

164466761 is a deficient number, since it is larger than the sum of its proper divisors (1).

164466761 is an equidigital number, since it uses as much as digits as its factorization.

164466761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 41.

The square root of 164466761 is about 12824.4594817871. The cubic root of 164466761 is about 547.8891665405.

The spelling of 164466761 in words is "one hundred sixty-four million, four hundred sixty-six thousand, seven hundred sixty-one".