445745701065665 has 32 divisors (see below), whose sum is σ = 718180486200576. Its totient is φ = 256493030780160.

The previous prime is 445745701065661. The next prime is 445745701065727. The reversal of 445745701065665 is 566560107547544.

It is not a de Polignac number, because 445745701065665 - 2² = 445745701065661 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (65).

It is not an unprimeable number, because it can be changed into a prime (445745701065661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44530035062 + ... + 44530045071.

It is an arithmetic number, because the mean of its divisors is an integer number (22443140193768).

Almost surely, 2^{445745701065665} is an apocalyptic number.

It is an amenable number.

445745701065665 is a deficient number, since it is larger than the sum of its proper divisors (272434785134911).

445745701065665 is a wasteful number, since it uses less digits than its factorization.

445745701065665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89060080169.

The product of its (nonzero) digits is 423360000, while the sum is 65.

The spelling of 445745701065665 in words is "four hundred forty-five trillion, seven hundred forty-five billion, seven hundred one million, sixty-five thousand, six hundred sixty-five".