70633161361 has 9 divisors (see below), whose sum is σ = 82167270249. Its totient is φ = 60541115124.

The previous prime is 70633161359. The next prime is 70633161373. The reversal of 70633161361 is 16316133607.

The square root of 70633161361 is 265769.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 70633161361 - 2¹ = 70633161359 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70633161361.

It is not an unprimeable number, because it can be changed into a prime (70633161341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1841400 + ... + 1879366.

Almost surely, 2^70633161361 is an apocalyptic number.

70633161361 is the 265769-th square number.

70633161361 is the 132885-th centered octagonal number.

It is an amenable number.

70633161361 is a deficient number, since it is larger than the sum of its proper divisors (11534108888).

70633161361 is an frugal number, since it uses more digits than its factorization.

70633161361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75948 (or 37974 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 37.

Adding to 70633161361 its reverse (16316133607), we get a palindrome (86949294968).

The spelling of 70633161361 in words is "seventy billion, six hundred thirty-three million, one hundred sixty-one thousand, three hundred sixty-one".