66140150 has 24 divisors (see below), whose sum is σ = 123277080. Its totient is φ = 26400960.

The previous prime is 66140147. The next prime is 66140161. The reversal of 66140150 is 5104166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29882 + ... + 32018.

It is an arithmetic number, because the mean of its divisors is an integer number (5136545).

Almost surely, 2^66140150 is an apocalyptic number.

66140150 is a deficient number, since it is larger than the sum of its proper divisors (57136930).

66140150 is a wasteful number, since it uses less digits than its factorization.

66140150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2768 (or 2763 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 66140150 is about 8132.6594666198. The cubic root of 66140150 is about 404.4098502246.

The spelling of 66140150 in words is "sixty-six million, one hundred forty thousand, one hundred fifty".