163854701541 has 6 divisors (see below), whose sum is σ = 236679013350. Its totient is φ = 109236467688.

The previous prime is 163854701497. The next prime is 163854701581. The reversal of 163854701541 is 145107458361.

163854701541 is a `hidden beast` number, since 1 + 6 + 38 + 5 + 4 + 70 + 1 + 541 = 666.

It can be written as a sum of positive squares in only one way, i.e., 163738385316 + 116316225 = 404646^2 + 10785^2 .

It is not a de Polignac number, because 163854701541 - 2¹⁵ = 163854668773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163854701581) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9103038966 + ... + 9103038983.

It is an arithmetic number, because the mean of its divisors is an integer number (39446502225).

Almost surely, 2^163854701541 is an apocalyptic number.

It is an amenable number.

163854701541 is a deficient number, since it is larger than the sum of its proper divisors (72824311809).

163854701541 is a wasteful number, since it uses less digits than its factorization.

163854701541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18206077955 (or 18206077952 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The spelling of 163854701541 in words is "one hundred sixty-three billion, eight hundred fifty-four million, seven hundred one thousand, five hundred forty-one".