165011060947 has 2 divisors, whose sum is σ = 165011060948. Its totient is φ = 165011060946.

The previous prime is 165011060927. The next prime is 165011060971. The reversal of 165011060947 is 749060110561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165011060947 - 2²³ = 165002672339 is a prime.

It is not a weakly prime, because it can be changed into another prime (165011060917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82505530473 + 82505530474.

It is an arithmetic number, because the mean of its divisors is an integer number (82505530474).

Almost surely, 2^165011060947 is an apocalyptic number.

165011060947 is a deficient number, since it is larger than the sum of its proper divisors (1).

165011060947 is an equidigital number, since it uses as much as digits as its factorization.

165011060947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 40.

The spelling of 165011060947 in words is "one hundred sixty-five billion, eleven million, sixty thousand, nine hundred forty-seven".