169455838961 has 2 divisors, whose sum is σ = 169455838962. Its totient is φ = 169455838960.

The previous prime is 169455838931. The next prime is 169455838969. The reversal of 169455838961 is 169838554961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86454228961 + 83001610000 = 294031^2 + 288100^2 .

It is a cyclic number.

It is not a de Polignac number, because 169455838961 - 2¹⁴ = 169455822577 is a prime.

It is not a weakly prime, because it can be changed into another prime (169455838969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84727919480 + 84727919481.

It is an arithmetic number, because the mean of its divisors is an integer number (84727919481).

Almost surely, 2^169455838961 is an apocalyptic number.

It is an amenable number.

169455838961 is a deficient number, since it is larger than the sum of its proper divisors (1).

169455838961 is an equidigital number, since it uses as much as digits as its factorization.

169455838961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55987200, while the sum is 65.

The spelling of 169455838961 in words is "one hundred sixty-nine billion, four hundred fifty-five million, eight hundred thirty-eight thousand, nine hundred sixty-one".