66027669 has 8 divisors (see below), whose sum is σ = 88380480. Its totient is φ = 43846656.

The previous prime is 66027649. The next prime is 66027673. The reversal of 66027669 is 96672066.

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

It is not a de Polignac number, because 66027669 - 2¹³ = 66019477 is a prime.

It is a super-2 number, since 2×66027669² = 8719306147147122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 66027669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66027649) 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, 42049 + ... + 43590.

It is an arithmetic number, because the mean of its divisors is an integer number (11047560).

Almost surely, 2^66027669 is an apocalyptic number.

It is an amenable number.

66027669 is a deficient number, since it is larger than the sum of its proper divisors (22352811).

66027669 is a wasteful number, since it uses less digits than its factorization.

66027669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85899.

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 66027669 is about 8125.7411354288. The cubic root of 66027669 is about 404.1804674401.

The spelling of 66027669 in words is "sixty-six million, twenty-seven thousand, six hundred sixty-nine".