66456042 has 8 divisors (see below), whose sum is σ = 132912096. Its totient is φ = 22152012.

The previous prime is 66456017. The next prime is 66456067. The reversal of 66456042 is 24065466.

It is an interprime number because it is at equal distance from previous prime (66456017) and next prime (66456067).

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

66456042 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 66455994 and 66456012.

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, 5537998 + ... + 5538009.

It is an arithmetic number, because the mean of its divisors is an integer number (16614012).

Almost surely, 2^66456042 is an apocalyptic number.

66456042 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.

66456042 is a wasteful number, since it uses less digits than its factorization.

66456042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11076012.

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

The square root of 66456042 is about 8152.0575316910. The cubic root of 66456042 is about 405.0526619526.

The spelling of 66456042 in words is "sixty-six million, four hundred fifty-six thousand, forty-two".