66247095 has 8 divisors (see below), whose sum is σ = 105995376. Its totient is φ = 35331776.

The previous prime is 66247081. The next prime is 66247141. The reversal of 66247095 is 59074266.

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 66247095 - 2¹⁴ = 66230711 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2208222 + ... + 2208251.

It is an arithmetic number, because the mean of its divisors is an integer number (13249422).

Almost surely, 2^66247095 is an apocalyptic number.

66247095 is a deficient number, since it is larger than the sum of its proper divisors (39748281).

66247095 is a wasteful number, since it uses less digits than its factorization.

66247095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4416481.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 66247095 is about 8139.2318433621. The cubic root of 66247095 is about 404.6277023744.

The spelling of 66247095 in words is "sixty-six million, two hundred forty-seven thousand, ninety-five".