66499142 has 8 divisors (see below), whose sum is σ = 99792000. Its totient is φ = 33235144.

The previous prime is 66499127. The next prime is 66499157. The reversal of 66499142 is 24199466.

It is an interprime number because it is at equal distance from previous prime (66499127) and next prime (66499157).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 66499142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17 + ... + 11532.

It is an arithmetic number, because the mean of its divisors is an integer number (12474000).

Almost surely, 2^66499142 is an apocalyptic number.

66499142 is a deficient number, since it is larger than the sum of its proper divisors (33292858).

66499142 is a wasteful number, since it uses less digits than its factorization.

66499142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14430.

The product of its digits is 93312, while the sum is 41.

The square root of 66499142 is about 8154.7006076250. The cubic root of 66499142 is about 405.1402085297.

The spelling of 66499142 in words is "sixty-six million, four hundred ninety-nine thousand, one hundred forty-two".