70216131572 has 6 divisors (see below), whose sum is σ = 122878230258. Its totient is φ = 35108065784.

The previous prime is 70216131571. The next prime is 70216131613. The reversal of 70216131572 is 27513161207.

It can be written as a sum of positive squares in only one way, i.e., 43766313616 + 26449817956 = 209204^2 + 162634^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70216131571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8777016443 + ... + 8777016450.

It is an arithmetic number, because the mean of its divisors is an integer number (20479705043).

Almost surely, 2^70216131572 is an apocalyptic number.

It is an amenable number.

70216131572 is a deficient number, since it is larger than the sum of its proper divisors (52662098686).

70216131572 is a wasteful number, since it uses less digits than its factorization.

70216131572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17554032897 (or 17554032895 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 35.

Adding to 70216131572 its reverse (27513161207), we get a palindrome (97729292779).

The spelling of 70216131572 in words is "seventy billion, two hundred sixteen million, one hundred thirty-one thousand, five hundred seventy-two".