66150865 has 8 divisors (see below), whose sum is σ = 86597568. Its totient is φ = 48109680.

The previous prime is 66150853. The next prime is 66150881. The reversal of 66150865 is 56805166.

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

It is not a de Polignac number, because 66150865 - 2¹⁵ = 66118097 is a prime.

It is a Duffinian 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, 601317 + ... + 601426.

It is an arithmetic number, because the mean of its divisors is an integer number (10824696).

Almost surely, 2^66150865 is an apocalyptic number.

It is an amenable number.

66150865 is a deficient number, since it is larger than the sum of its proper divisors (20446703).

66150865 is a wasteful number, since it uses less digits than its factorization.

66150865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202759.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 66150865 is about 8133.3182035378. The cubic root of 66150865 is about 404.4316877800.

The spelling of 66150865 in words is "sixty-six million, one hundred fifty thousand, eight hundred sixty-five".