641266102 has 4 divisors (see below), whose sum is σ = 961899156. Its totient is φ = 320633050.

The previous prime is 641266081. The next prime is 641266121. The reversal of 641266102 is 201662146.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×641266102² = 822444427148548808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160316524 + ... + 160316527.

It is an arithmetic number, because the mean of its divisors is an integer number (240474789).

Almost surely, 2^641266102 is an apocalyptic number.

641266102 is a deficient number, since it is larger than the sum of its proper divisors (320633054).

641266102 is a wasteful number, since it uses less digits than its factorization.

641266102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320633053.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 641266102 is about 25323.2324555930. The cubic root of 641266102 is about 862.3417796168.

The spelling of 641266102 in words is "six hundred forty-one million, two hundred sixty-six thousand, one hundred two".