165627061 has 2 divisors, whose sum is σ = 165627062. Its totient is φ = 165627060.

The previous prime is 165627053. The next prime is 165627113. The reversal of 165627061 is 160726561.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145323025 + 20304036 = 12055^2 + 4506^2 .

It is a cyclic number.

It is not a de Polignac number, because 165627061 - 2³ = 165627053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165627031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82813530 + 82813531.

It is an arithmetic number, because the mean of its divisors is an integer number (82813531).

Almost surely, 2^165627061 is an apocalyptic number.

It is an amenable number.

165627061 is a deficient number, since it is larger than the sum of its proper divisors (1).

165627061 is an equidigital number, since it uses as much as digits as its factorization.

165627061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 165627061 is about 12869.6177487911. The cubic root of 165627061 is about 549.1745866728.

The spelling of 165627061 in words is "one hundred sixty-five million, six hundred twenty-seven thousand, sixty-one".