72213106526570 has 16 divisors (see below), whose sum is σ = 130002760663848. Its totient is φ = 28880982851520.

The previous prime is 72213106526567. The next prime is 72213106526581. The reversal of 72213106526570 is 7562560131227.

It can be written as a sum of positive squares in 4 ways, for example, as 30374835527569 + 41838270999001 = 5511337^2 + 6468251^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 532398689 + ... + 532534308.

Almost surely, 2^{72213106526570} is an apocalyptic number.

72213106526570 is a deficient number, since it is larger than the sum of its proper divisors (57789654137278).

72213106526570 is a wasteful number, since it uses less digits than its factorization.

72213106526570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064939785.

The product of its (nonzero) digits is 1058400, while the sum is 47.

Adding to 72213106526570 its reverse (7562560131227), we get a palindrome (79775666657797).

The spelling of 72213106526570 in words is "seventy-two trillion, two hundred thirteen billion, one hundred six million, five hundred twenty-six thousand, five hundred seventy".