66874018 has 8 divisors (see below), whose sum is σ = 104672448. Its totient is φ = 31983204.

The previous prime is 66873979. The next prime is 66874061. The reversal of 66874018 is 81047866.

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

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, 726846 + ... + 726937.

It is an arithmetic number, because the mean of its divisors is an integer number (13084056).

Almost surely, 2^66874018 is an apocalyptic number.

66874018 is a deficient number, since it is larger than the sum of its proper divisors (37798430).

66874018 is a wasteful number, since it uses less digits than its factorization.

66874018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1453808.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 66874018 is about 8177.6535754457. The cubic root of 66874018 is about 405.9000821847.

The spelling of 66874018 in words is "sixty-six million, eight hundred seventy-four thousand, eighteen".