705540640361 has 8 divisors (see below), whose sum is σ = 706256505504. Its totient is φ = 704825094400.

The previous prime is 705540640333. The next prime is 705540640381. The reversal of 705540640361 is 163046045507.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 705540640361 - 2²² = 705536446057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (705540640381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4474286 + ... + 4629288.

It is an arithmetic number, because the mean of its divisors is an integer number (88282063188).

Almost surely, 2^705540640361 is an apocalyptic number.

It is an amenable number.

705540640361 is a deficient number, since it is larger than the sum of its proper divisors (715865143).

705540640361 is a wasteful number, since it uses less digits than its factorization.

705540640361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159591.

The product of its (nonzero) digits is 302400, while the sum is 41.

Adding to 705540640361 its reverse (163046045507), we get a palindrome (868586685868).

The spelling of 705540640361 in words is "seven hundred five billion, five hundred forty million, six hundred forty thousand, three hundred sixty-one".