163664103451 has 8 divisors (see below), whose sum is σ = 173930860224. Its totient is φ = 153468397440.

The previous prime is 163664103443. The next prime is 163664103457. The reversal of 163664103451 is 154301466361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 163664103451 - 2³ = 163664103443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163664103457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17757940 + ... + 17767153.

It is an arithmetic number, because the mean of its divisors is an integer number (21741357528).

Almost surely, 2^163664103451 is an apocalyptic number.

163664103451 is a deficient number, since it is larger than the sum of its proper divisors (10266756773).

163664103451 is a wasteful number, since it uses less digits than its factorization.

163664103451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35525381.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 163664103451 in words is "one hundred sixty-three billion, six hundred sixty-four million, one hundred three thousand, four hundred fifty-one".