65001449999 has 4 divisors (see below), whose sum is σ = 65011678320. Its totient is φ = 64991221680.

The previous prime is 65001449987. The next prime is 65001450049. The reversal of 65001449999 is 99994410056.

65001449999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 65001449999 - 2⁴ = 65001449983 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 (65001449959) 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, 5104622 + ... + 5117339.

It is an arithmetic number, because the mean of its divisors is an integer number (16252919580).

Almost surely, 2^65001449999 is an apocalyptic number.

65001449999 is a deficient number, since it is larger than the sum of its proper divisors (10228321).

65001449999 is a wasteful number, since it uses less digits than its factorization.

65001449999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10228320.

The product of its (nonzero) digits is 3149280, while the sum is 56.

The spelling of 65001449999 in words is "sixty-five billion, one million, four hundred forty-nine thousand, nine hundred ninety-nine".