70305564321 has 12 divisors (see below), whose sum is σ = 106897349520. Its totient is φ = 44403514200.

The previous prime is 70305564313. The next prime is 70305564389. The reversal of 70305564321 is 12346550307.

70305564321 is a `hidden beast` number, since 7 + 0 + 3 + 0 + 5 + 5 + 643 + 2 + 1 = 666.

It is not a de Polignac number, because 70305564321 - 2³ = 70305564313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70305564421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 205571655 + ... + 205571996.

It is an arithmetic number, because the mean of its divisors is an integer number (8908112460).

Almost surely, 2^70305564321 is an apocalyptic number.

It is an amenable number.

70305564321 is a deficient number, since it is larger than the sum of its proper divisors (36591785199).

70305564321 is a wasteful number, since it uses less digits than its factorization.

70305564321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411143676 (or 411143673 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

It can be divided in two parts, 703055 and 64321, that added together give a square (767376 = 876²).

The spelling of 70305564321 in words is "seventy billion, three hundred five million, five hundred sixty-four thousand, three hundred twenty-one".