66006115 has 16 divisors (see below), whose sum is σ = 90869760. Its totient is φ = 45087840.

The previous prime is 66006107. The next prime is 66006137. The reversal of 66006115 is 51160066.

It is not a de Polignac number, because 66006115 - 2³ = 66006107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66006115.

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, 6006 + ... + 12964.

It is an arithmetic number, because the mean of its divisors is an integer number (5679360).

Almost surely, 2^66006115 is an apocalyptic number.

66006115 is a deficient number, since it is larger than the sum of its proper divisors (24863645).

66006115 is a wasteful number, since it uses less digits than its factorization.

66006115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7242.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 66006115 is about 8124.4147481526. The cubic root of 66006115 is about 404.1364825771.

The spelling of 66006115 in words is "sixty-six million, six thousand, one hundred fifteen".