646141413266 has 8 divisors (see below), whose sum is σ = 978103974540. Its totient is φ = 320106755088.

The previous prime is 646141413263. The next prime is 646141413277. The reversal of 646141413266 is 662314141646.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 646128200041 + 13213225 = 803821^2 + 3635^2 .

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 (646141413263) 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, 1481975501 + ... + 1481975936.

Almost surely, 2^646141413266 is an apocalyptic number.

646141413266 is a deficient number, since it is larger than the sum of its proper divisors (331962561274).

646141413266 is a wasteful number, since it uses less digits than its factorization.

646141413266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2963951548.

The product of its digits is 497664, while the sum is 44.

The spelling of 646141413266 in words is "six hundred forty-six billion, one hundred forty-one million, four hundred thirteen thousand, two hundred sixty-six".