449633651665 has 32 divisors (see below), whose sum is σ = 631281340800. Its totient is φ = 303950200320.

The previous prime is 449633651651. The next prime is 449633651681. The reversal of 449633651665 is 566156336944.

It is a happy number.

It is not a de Polignac number, because 449633651665 - 2²⁷ = 449499433937 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4003780 + ... + 4114549.

It is an arithmetic number, because the mean of its divisors is an integer number (19727541900).

Almost surely, 2^449633651665 is an apocalyptic number.

It is an amenable number.

449633651665 is a deficient number, since it is larger than the sum of its proper divisors (181647689135).

449633651665 is a wasteful number, since it uses less digits than its factorization.

449633651665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8118417.

The product of its digits is 41990400, while the sum is 58.

The spelling of 449633651665 in words is "four hundred forty-nine billion, six hundred thirty-three million, six hundred fifty-one thousand, six hundred sixty-five".