157866086 has 32 divisors (see below), whose sum is σ = 275996160. Its totient is φ = 66326400.

The previous prime is 157866073. The next prime is 157866101. The reversal of 157866086 is 680668751.

It is a super-2 number, since 2×157866086² = 49843402217918792, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 157866086.

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 15 ways as a sum of consecutive naturals, for example, 239225 + ... + 239883.

It is an arithmetic number, because the mean of its divisors is an integer number (8624880).

Almost surely, 2^157866086 is an apocalyptic number.

157866086 is a deficient number, since it is larger than the sum of its proper divisors (118130074).

157866086 is a wasteful number, since it uses less digits than its factorization.

157866086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980.

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 157866086 is about 12564.4771478960. The cubic root of 157866086 is about 540.4592412449.

The spelling of 157866086 in words is "one hundred fifty-seven million, eight hundred sixty-six thousand, eighty-six".