65449459133 has 16 divisors (see below), whose sum is σ = 67572800064. Its totient is φ = 63361647360.

The previous prime is 65449459123. The next prime is 65449459139. The reversal of 65449459133 is 33195494456.

It is a cyclic number.

It is not a de Polignac number, because 65449459133 - 2²⁴ = 65432681917 is a prime.

It is a super-2 number, since 2×65449459133² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65449459139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5294666 + ... + 5307012.

It is an arithmetic number, because the mean of its divisors is an integer number (4223300004).

Almost surely, 2^65449459133 is an apocalyptic number.

It is an amenable number.

65449459133 is a deficient number, since it is larger than the sum of its proper divisors (2123340931).

65449459133 is a wasteful number, since it uses less digits than its factorization.

65449459133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13772.

The product of its digits is 6998400, while the sum is 53.

The spelling of 65449459133 in words is "sixty-five billion, four hundred forty-nine million, four hundred fifty-nine thousand, one hundred thirty-three".