163874755601 has 2 divisors, whose sum is σ = 163874755602. Its totient is φ = 163874755600.

The previous prime is 163874755553. The next prime is 163874755631. The reversal of 163874755601 is 106557478361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142733595601 + 21141160000 = 377801^2 + 145400^2 .

It is a cyclic number.

It is not a de Polignac number, because 163874755601 - 2¹⁸ = 163874493457 is a prime.

It is not a weakly prime, because it can be changed into another prime (163874755631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81937377800 + 81937377801.

It is an arithmetic number, because the mean of its divisors is an integer number (81937377801).

Almost surely, 2^163874755601 is an apocalyptic number.

It is an amenable number.

163874755601 is a deficient number, since it is larger than the sum of its proper divisors (1).

163874755601 is an equidigital number, since it uses as much as digits as its factorization.

163874755601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4233600, while the sum is 53.

The spelling of 163874755601 in words is "one hundred sixty-three billion, eight hundred seventy-four million, seven hundred fifty-five thousand, six hundred one".