664113041 has 6 divisors (see below), whose sum is σ = 705476790. Its totient is φ = 625047296.

The previous prime is 664113029. The next prime is 664113067. The reversal of 664113041 is 140311466.

It can be written as a sum of positive squares in 3 ways, for example, as 172160641 + 491952400 = 13121^2 + 22180^2 .

It is a de Polignac number, because none of the positive numbers 2^k-664113041 is a prime.

It is a super-2 number, since 2×664113041² = 882092262452535362, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 664113041.

It is not an unprimeable number, because it can be changed into a prime (664013041) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1148696 + ... + 1149273.

It is an arithmetic number, because the mean of its divisors is an integer number (117579465).

Almost surely, 2^664113041 is an apocalyptic number.

It is an amenable number.

664113041 is a deficient number, since it is larger than the sum of its proper divisors (41363749).

664113041 is a wasteful number, since it uses less digits than its factorization.

664113041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2298003 (or 2297986 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 664113041 is about 25770.3907808943. The cubic root of 664113041 is about 872.4636387941.

The spelling of 664113041 in words is "six hundred sixty-four million, one hundred thirteen thousand, forty-one".