66290495 has 8 divisors (see below), whose sum is σ = 81698784. Its totient is φ = 51598944.

The previous prime is 66290489. The next prime is 66290501. The reversal of 66290495 is 59409266.

It is an interprime number because it is at equal distance from previous prime (66290489) and next prime (66290501).

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

It is a cyclic number.

It is not a de Polignac number, because 66290495 - 2¹⁰ = 66289471 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178979 + ... + 179348.

It is an arithmetic number, because the mean of its divisors is an integer number (10212348).

Almost surely, 2^66290495 is an apocalyptic number.

66290495 is a deficient number, since it is larger than the sum of its proper divisors (15408289).

66290495 is a wasteful number, since it uses less digits than its factorization.

66290495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358369.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 66290495 is about 8141.8975061100. The cubic root of 66290495 is about 404.7160433995.

The spelling of 66290495 in words is "sixty-six million, two hundred ninety thousand, four hundred ninety-five".