66020095 has 16 divisors (see below), whose sum is σ = 86780160. Its totient is φ = 47993344.

The previous prime is 66020081. The next prime is 66020147. The reversal of 66020095 is 59002066.

It is a cyclic number.

It is not a de Polignac number, because 66020095 - 2¹⁷ = 65889023 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10927 + ... + 15856.

It is an arithmetic number, because the mean of its divisors is an integer number (5423760).

Almost surely, 2^66020095 is an apocalyptic number.

66020095 is a deficient number, since it is larger than the sum of its proper divisors (20760065).

66020095 is a wasteful number, since it uses less digits than its factorization.

66020095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26834.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 66020095 is about 8125.2750722668. The cubic root of 66020095 is about 404.1650124045.

The spelling of 66020095 in words is "sixty-six million, twenty thousand, ninety-five".