158663663 has 8 divisors (see below), whose sum is σ = 160821936. Its totient is φ = 156520000.

The previous prime is 158663657. The next prime is 158663671. The reversal of 158663663 is 366366851.

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 158663663 - 2¹⁰ = 158662639 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 (158663653) 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, 19163 + ... + 26163.

It is an arithmetic number, because the mean of its divisors is an integer number (20102742).

Almost surely, 2^158663663 is an apocalyptic number.

158663663 is a deficient number, since it is larger than the sum of its proper divisors (2158273).

158663663 is a wasteful number, since it uses less digits than its factorization.

158663663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7305.

The product of its digits is 466560, while the sum is 44.

The square root of 158663663 is about 12596.1765230565. The cubic root of 158663663 is about 541.3678889186.

The spelling of 158663663 in words is "one hundred fifty-eight million, six hundred sixty-three thousand, six hundred sixty-three".