66001235 has 16 divisors (see below), whose sum is σ = 80978400. Its totient is φ = 51626496.

The previous prime is 66001217. The next prime is 66001249. The reversal of 66001235 is 53210066.

It is a cyclic number.

It is not a de Polignac number, because 66001235 - 2⁶ = 66001171 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66001235.

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, 67067 + ... + 68043.

It is an arithmetic number, because the mean of its divisors is an integer number (5061150).

Almost surely, 2^66001235 is an apocalyptic number.

66001235 is a deficient number, since it is larger than the sum of its proper divisors (14977165).

66001235 is a wasteful number, since it uses less digits than its factorization.

66001235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 66001235 is about 8124.1144132761. The cubic root of 66001235 is about 404.1265227189.

The spelling of 66001235 in words is "sixty-six million, one thousand, two hundred thirty-five".