266665142602 has 8 divisors (see below), whose sum is σ = 400003236576. Its totient is φ = 133330730412.

The previous prime is 266665142543. The next prime is 266665142657. The reversal of 266665142602 is 206241566662.

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

It is a super-2 number, since 2×266665142602² (a number of 24 digits) contains 22 as substring.

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, 731628 + ... + 1033735.

It is an arithmetic number, because the mean of its divisors is an integer number (50000404572).

Almost surely, 2^266665142602 is an apocalyptic number.

266665142602 is a deficient number, since it is larger than the sum of its proper divisors (133338093974).

266665142602 is a wasteful number, since it uses less digits than its factorization.

266665142602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840892.

The product of its (nonzero) digits is 1244160, while the sum is 46.

The spelling of 266665142602 in words is "two hundred sixty-six billion, six hundred sixty-five million, one hundred forty-two thousand, six hundred two".