157166803 has 8 divisors (see below), whose sum is σ = 165554000. Its totient is φ = 148791168.

The previous prime is 157166777. The next prime is 157166809. The reversal of 157166803 is 308661751.

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 157166803 - 2²⁵ = 123612371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157166809) 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, 50023 + ... + 53071.

It is an arithmetic number, because the mean of its divisors is an integer number (20694250).

Almost surely, 2^157166803 is an apocalyptic number.

157166803 is a deficient number, since it is larger than the sum of its proper divisors (8387197).

157166803 is a wasteful number, since it uses less digits than its factorization.

157166803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5781.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 157166803 is about 12536.6184834667. The cubic root of 157166803 is about 539.6600546725.

The spelling of 157166803 in words is "one hundred fifty-seven million, one hundred sixty-six thousand, eight hundred three".