641614558 has 16 divisors (see below), whose sum is σ = 1064468160. Its totient is φ = 288125856.

The previous prime is 641614543. The next prime is 641614559. The reversal of 641614558 is 855416146.

It is a self number, because there is not a number n which added to its sum of digits gives 641614558.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641614559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332518 + ... + 334441.

It is an arithmetic number, because the mean of its divisors is an integer number (66529260).

Almost surely, 2^641614558 is an apocalyptic number.

641614558 is a deficient number, since it is larger than the sum of its proper divisors (422853602).

641614558 is a wasteful number, since it uses less digits than its factorization.

641614558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667011.

The product of its digits is 115200, while the sum is 40.

The square root of 641614558 is about 25330.1116855019. Note that the first 3 decimals coincide. The cubic root of 641614558 is about 862.4979465890.

The spelling of 641614558 in words is "six hundred forty-one million, six hundred fourteen thousand, five hundred fifty-eight".