165059776001 has 2 divisors, whose sum is σ = 165059776002. Its totient is φ = 165059776000.

The previous prime is 165059775997. The next prime is 165059776009. The reversal of 165059776001 is 100677950561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153664000000 + 11395776001 = 392000^2 + 106751^2 .

It is an emirp because it is prime and its reverse (100677950561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 165059776001 - 2² = 165059775997 is a prime.

It is not a weakly prime, because it can be changed into another prime (165059776009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82529888000 + 82529888001.

It is an arithmetic number, because the mean of its divisors is an integer number (82529888001).

Almost surely, 2^165059776001 is an apocalyptic number.

It is an amenable number.

165059776001 is a deficient number, since it is larger than the sum of its proper divisors (1).

165059776001 is an equidigital number, since it uses as much as digits as its factorization.

165059776001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 396900, while the sum is 47.

The spelling of 165059776001 in words is "one hundred sixty-five billion, fifty-nine million, seven hundred seventy-six thousand, one".