66083087 has 4 divisors (see below), whose sum is σ = 75523536. Its totient is φ = 56642640.

The previous prime is 66083057. The next prime is 66083153. The reversal of 66083087 is 78038066.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78038066 = 2 ⋅39019033.

It is a cyclic number.

It is not a de Polignac number, because 66083087 - 2⁸ = 66082831 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66083087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66083057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4720214 + ... + 4720227.

It is an arithmetic number, because the mean of its divisors is an integer number (18880884).

Almost surely, 2^66083087 is an apocalyptic number.

66083087 is a deficient number, since it is larger than the sum of its proper divisors (9440449).

66083087 is an equidigital number, since it uses as much as digits as its factorization.

66083087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9440448.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 66083087 is about 8129.1504476175. The cubic root of 66083087 is about 404.2935140352.

The spelling of 66083087 in words is "sixty-six million, eighty-three thousand, eighty-seven".