264020417666 has 8 divisors (see below), whose sum is σ = 396038586384. Its totient is φ = 132007555540.

The previous prime is 264020417663. The next prime is 264020417681. The reversal of 264020417666 is 666714020462.

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

It is not an unprimeable number, because it can be changed into a prime (264020417663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1199840 + ... + 1402731.

It is an arithmetic number, because the mean of its divisors is an integer number (49504823298).

Almost surely, 2^264020417666 is an apocalyptic number.

264020417666 is a deficient number, since it is larger than the sum of its proper divisors (132018168718).

264020417666 is a wasteful number, since it uses less digits than its factorization.

264020417666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2653296.

The product of its (nonzero) digits is 580608, while the sum is 44.

The spelling of 264020417666 in words is "two hundred sixty-four billion, twenty million, four hundred seventeen thousand, six hundred sixty-six".