163660414 has 8 divisors (see below), whose sum is σ = 258411240. Its totient is φ = 77523336.

The previous prime is 163660403. The next prime is 163660421. The reversal of 163660414 is 414066361.

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

It is a super-2 number, since 2×163660414² = 53569462221302792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2153389 + ... + 2153464.

It is an arithmetic number, because the mean of its divisors is an integer number (32301405).

Almost surely, 2^163660414 is an apocalyptic number.

163660414 is a deficient number, since it is larger than the sum of its proper divisors (94750826).

163660414 is a wasteful number, since it uses less digits than its factorization.

163660414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4306874.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 163660414 is about 12792.9829985035. The cubic root of 163660414 is about 546.9923029307.

The spelling of 163660414 in words is "one hundred sixty-three million, six hundred sixty thousand, four hundred fourteen".