66807027 has 24 divisors (see below), whose sum is σ = 110529536. Its totient is φ = 38090736.

The previous prime is 66807023. The next prime is 66807029. The reversal of 66807027 is 72070866.

It is not a de Polignac number, because 66807027 - 2² = 66807023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66806982 and 66807000.

It is not an unprimeable number, because it can be changed into a prime (66807023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37368 + ... + 39114.

Almost surely, 2^66807027 is an apocalyptic number.

66807027 is a deficient number, since it is larger than the sum of its proper divisors (43722509).

66807027 is a wasteful number, since it uses less digits than its factorization.

66807027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2367 (or 2364 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 66807027 is about 8173.5565698171. The cubic root of 66807027 is about 405.7645001953.

The spelling of 66807027 in words is "sixty-six million, eight hundred seven thousand, twenty-seven".