66157106 has 16 divisors (see below), whose sum is σ = 102345984. Its totient is φ = 32055744.

The previous prime is 66157097. The next prime is 66157111. The reversal of 66157106 is 60175166.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6266 + ... + 13098.

It is an arithmetic number, because the mean of its divisors is an integer number (6396624).

Almost surely, 2^66157106 is an apocalyptic number.

66157106 is a deficient number, since it is larger than the sum of its proper divisors (36188878).

66157106 is a wasteful number, since it uses less digits than its factorization.

66157106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6985.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 66157106 is about 8133.7018632355. The cubic root of 66157106 is about 404.4444060757. Note that the first 4 decimals are identical.

The spelling of 66157106 in words is "sixty-six million, one hundred fifty-seven thousand, one hundred six".