156664163 has 8 divisors (see below), whose sum is σ = 166270608. Its totient is φ = 147101184.

The previous prime is 156664099. The next prime is 156664169. The reversal of 156664163 is 361466651.

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 156664163 - 2⁶ = 156664099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (156664169) 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, 3281 + ... + 18002.

It is an arithmetic number, because the mean of its divisors is an integer number (20783826).

Almost surely, 2^156664163 is an apocalyptic number.

156664163 is a deficient number, since it is larger than the sum of its proper divisors (9606445).

156664163 is a wasteful number, since it uses less digits than its factorization.

156664163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21733.

The product of its digits is 77760, while the sum is 38.

The square root of 156664163 is about 12516.5555565419. Note that the first 5 decimals coincide. The cubic root of 156664163 is about 539.0841391294.

The spelling of 156664163 in words is "one hundred fifty-six million, six hundred sixty-four thousand, one hundred sixty-three".