66417027 has 8 divisors (see below), whose sum is σ = 93216960. Its totient is φ = 41947560.

The previous prime is 66417023. The next prime is 66417037. The reversal of 66417027 is 72071466.

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

It is not a de Polignac number, because 66417027 - 2² = 66417023 is a prime.

It is a super-2 number, since 2×66417027² = 8822442951037458, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66417023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 582549 + ... + 582662.

It is an arithmetic number, because the mean of its divisors is an integer number (11652120).

Almost surely, 2^66417027 is an apocalyptic number.

66417027 is a deficient number, since it is larger than the sum of its proper divisors (26799933).

66417027 is a wasteful number, since it uses less digits than its factorization.

66417027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165233.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 66417027 is about 8149.6642262120. The cubic root of 66417027 is about 404.9733803568.

The spelling of 66417027 in words is "sixty-six million, four hundred seventeen thousand, twenty-seven".