66337465 has 4 divisors (see below), whose sum is σ = 79604964. Its totient is φ = 53069968.

The previous prime is 66337429. The next prime is 66337477. The reversal of 66337465 is 56473366.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11162281 + 55175184 = 3341^2 + 7428^2 .

It is a cyclic number.

It is not a de Polignac number, because 66337465 - 2¹³ = 66329273 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6633742 + ... + 6633751.

It is an arithmetic number, because the mean of its divisors is an integer number (19901241).

Almost surely, 2^66337465 is an apocalyptic number.

It is an amenable number.

66337465 is a deficient number, since it is larger than the sum of its proper divisors (13267499).

66337465 is a wasteful number, since it uses less digits than its factorization.

66337465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13267498.

The product of its digits is 272160, while the sum is 40.

The square root of 66337465 is about 8144.7814580871. The cubic root of 66337465 is about 404.8116077516.

The spelling of 66337465 in words is "sixty-six million, three hundred thirty-seven thousand, four hundred sixty-five".