66157036 has 24 divisors (see below), whose sum is σ = 129716496. Its totient is φ = 29257920.

The previous prime is 66156989. The next prime is 66157051. The reversal of 66157036 is 63075166.

It is a happy number.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 66156992 and 66157010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18691 + ... + 21946.

It is an arithmetic number, because the mean of its divisors is an integer number (5404854).

Almost surely, 2^66157036 is an apocalyptic number.

It is an amenable number.

66157036 is a deficient number, since it is larger than the sum of its proper divisors (63559460).

66157036 is a wasteful number, since it uses less digits than its factorization.

66157036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40689 (or 40687 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 66157036 is about 8133.6975601506. The cubic root of 66157036 is about 404.4442634298. Note that the first 3 decimals are identical.

The spelling of 66157036 in words is "sixty-six million, one hundred fifty-seven thousand, thirty-six".