64041599 has 4 divisors (see below), whose sum is σ = 66249960. Its totient is φ = 61833240.

The previous prime is 64041581. The next prime is 64041611. The reversal of 64041599 is 99514046.

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

It is a cyclic number.

It is not a de Polignac number, because 64041599 - 2¹⁶ = 63976063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64041529) 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, 1104137 + ... + 1104194.

It is an arithmetic number, because the mean of its divisors is an integer number (16562490).

Almost surely, 2^64041599 is an apocalyptic number.

64041599 is a deficient number, since it is larger than the sum of its proper divisors (2208361).

64041599 is a wasteful number, since it uses less digits than its factorization.

64041599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2208360.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 64041599 is about 8002.5995151576. The cubic root of 64041599 is about 400.0866458132.

The spelling of 64041599 in words is "sixty-four million, forty-one thousand, five hundred ninety-nine".