66880150 has 12 divisors (see below), whose sum is σ = 124397172. Its totient is φ = 26752040.

The previous prime is 66880141. The next prime is 66880157. The reversal of 66880150 is 5108866.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66880157) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 668752 + ... + 668851.

It is an arithmetic number, because the mean of its divisors is an integer number (10366431).

Almost surely, 2^66880150 is an apocalyptic number.

66880150 is a deficient number, since it is larger than the sum of its proper divisors (57517022).

66880150 is a wasteful number, since it uses less digits than its factorization.

66880150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337615 (or 1337610 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 66880150 is about 8178.0284910240. The cubic root of 66880150 is about 405.9124881151.

The spelling of 66880150 in words is "sixty-six million, eight hundred eighty thousand, one hundred fifty".