354163881663 has 24 divisors (see below), whose sum is σ = 523537414400. Its totient is φ = 230587333200.

The previous prime is 354163881641. The next prime is 354163881683. The reversal of 354163881663 is 366188361453.

354163881663 is a `hidden beast` number, since 3 + 541 + 6 + 3 + 88 + 16 + 6 + 3 = 666.

It is not a de Polignac number, because 354163881663 - 2²⁴ = 354147104447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354163881613) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3019488 + ... + 3134586.

Almost surely, 2^354163881663 is an apocalyptic number.

354163881663 is a deficient number, since it is larger than the sum of its proper divisors (169373532737).

354163881663 is a wasteful number, since it uses less digits than its factorization.

354163881663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123099 (or 123096 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 54.

The spelling of 354163881663 in words is "three hundred fifty-four billion, one hundred sixty-three million, eight hundred eighty-one thousand, six hundred sixty-three".