66954146 has 16 divisors (see below), whose sum is σ = 115685376. Its totient is φ = 28467936.

The previous prime is 66954103. The next prime is 66954161. The reversal of 66954146 is 64145966.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17051 + ... + 20606.

It is an arithmetic number, because the mean of its divisors is an integer number (7230336).

Almost surely, 2^66954146 is an apocalyptic number.

66954146 is a deficient number, since it is larger than the sum of its proper divisors (48731230).

66954146 is a wasteful number, since it uses less digits than its factorization.

66954146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37793.

The product of its digits is 155520, while the sum is 41.

The square root of 66954146 is about 8182.5513136185. The cubic root of 66954146 is about 406.0621330649.

The spelling of 66954146 in words is "sixty-six million, nine hundred fifty-four thousand, one hundred forty-six".