64091611 has 2 divisors, whose sum is σ = 64091612. Its totient is φ = 64091610.

The previous prime is 64091567. The next prime is 64091627. The reversal of 64091611 is 11619046.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64091611 - 2¹⁵ = 64058843 is a prime.

It is a super-3 number, since 3×64091611³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64091611.

It is not a weakly prime, because it can be changed into another prime (64091311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32045805 + 32045806.

It is an arithmetic number, because the mean of its divisors is an integer number (32045806).

Almost surely, 2^64091611 is an apocalyptic number.

64091611 is a deficient number, since it is larger than the sum of its proper divisors (1).

64091611 is an equidigital number, since it uses as much as digits as its factorization.

64091611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 64091611 is about 8005.7236399966. The cubic root of 64091611 is about 400.1907652571.

The spelling of 64091611 in words is "sixty-four million, ninety-one thousand, six hundred eleven".