66150249 has 16 divisors (see below), whose sum is σ = 99323904. Its totient is φ = 38797200.

The previous prime is 66150209. The next prime is 66150283. The reversal of 66150249 is 94205166.

It is not a de Polignac number, because 66150249 - 2¹³ = 66142057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66150209) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 31309 + ... + 33354.

It is an arithmetic number, because the mean of its divisors is an integer number (6207744).

Almost surely, 2^66150249 is an apocalyptic number.

It is an amenable number.

66150249 is a deficient number, since it is larger than the sum of its proper divisors (33173655).

66150249 is a wasteful number, since it uses less digits than its factorization.

66150249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64708.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 66150249 is about 8133.2803345268. The cubic root of 66150249 is about 404.4304324137.

The spelling of 66150249 in words is "sixty-six million, one hundred fifty thousand, two hundred forty-nine".