164652557 has 2 divisors, whose sum is σ = 164652558. Its totient is φ = 164652556.

The previous prime is 164652533. The next prime is 164652583. The reversal of 164652557 is 755256461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126472516 + 38180041 = 11246^2 + 6179^2 .

It is a cyclic number.

It is not a de Polignac number, because 164652557 - 2¹⁶ = 164587021 is a prime.

It is a super-2 number, since 2×164652557² = 54220929053276498, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164652857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82326278 + 82326279.

It is an arithmetic number, because the mean of its divisors is an integer number (82326279).

Almost surely, 2^164652557 is an apocalyptic number.

It is an amenable number.

164652557 is a deficient number, since it is larger than the sum of its proper divisors (1).

164652557 is an equidigital number, since it uses as much as digits as its factorization.

164652557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 252000, while the sum is 41.

The square root of 164652557 is about 12831.7012511981. The cubic root of 164652557 is about 548.0954033643.

The spelling of 164652557 in words is "one hundred sixty-four million, six hundred fifty-two thousand, five hundred fifty-seven".