158894966 has 4 divisors (see below), whose sum is σ = 238342452. Its totient is φ = 79447482.

The previous prime is 158894963. The next prime is 158894977. The reversal of 158894966 is 669498851.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×158894966² = 50495220440282312, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158894963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39723740 + ... + 39723743.

It is an arithmetic number, because the mean of its divisors is an integer number (59585613).

Almost surely, 2^158894966 is an apocalyptic number.

158894966 is a deficient number, since it is larger than the sum of its proper divisors (79447486).

158894966 is an equidigital number, since it uses as much as digits as its factorization.

158894966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79447485.

The product of its digits is 3732480, while the sum is 56.

The square root of 158894966 is about 12605.3546558595. The cubic root of 158894966 is about 541.6308334271.

The spelling of 158894966 in words is "one hundred fifty-eight million, eight hundred ninety-four thousand, nine hundred sixty-six".