66054426 has 8 divisors (see below), whose sum is σ = 132108864. Its totient is φ = 22018140.

The previous prime is 66054379. The next prime is 66054437. The reversal of 66054426 is 62445066.

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

66054426 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5504530 + ... + 5504541.

It is an arithmetic number, because the mean of its divisors is an integer number (16513608).

Almost surely, 2^66054426 is an apocalyptic number.

66054426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66054426 is a wasteful number, since it uses less digits than its factorization.

66054426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11009076.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 66054426 is about 8127.3874030958. The cubic root of 66054426 is about 404.2350566571.

The spelling of 66054426 in words is "sixty-six million, fifty-four thousand, four hundred twenty-six".