641159016 has 16 divisors (see below), whose sum is σ = 1602897600. Its totient is φ = 213719664.

The previous prime is 641159011. The next prime is 641159027. The reversal of 641159016 is 610951146.

It is a super-2 number, since 2×641159016² = 822169767596176512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (641159011) 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, 13357456 + ... + 13357503.

It is an arithmetic number, because the mean of its divisors is an integer number (100181100).

Almost surely, 2^641159016 is an apocalyptic number.

It is an amenable number.

641159016 is an abundant number, since it is smaller than the sum of its proper divisors (961738584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

641159016 is a wasteful number, since it uses less digits than its factorization.

641159016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26714968 (or 26714964 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 641159016 is about 25321.1179847968. The cubic root of 641159016 is about 862.2937756903.

The spelling of 641159016 in words is "six hundred forty-one million, one hundred fifty-nine thousand, sixteen".