97212308516 has 12 divisors (see below), whose sum is σ = 170184824460. Its totient is φ = 48588072960.

The previous prime is 97212308467. The next prime is 97212308527. The reversal of 97212308516 is 61580321279.

It can be written as a sum of positive squares in 2 ways, for example, as 4449423616 + 92762884900 = 66704^2 + 304570^2 .

It is a super-2 number, since 2×97212308516² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4508225 + ... + 4529736.

It is an arithmetic number, because the mean of its divisors is an integer number (14182068705).

Almost surely, 2^97212308516 is an apocalyptic number.

It is an amenable number.

97212308516 is a deficient number, since it is larger than the sum of its proper divisors (72972515944).

97212308516 is a wasteful number, since it uses less digits than its factorization.

97212308516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9040654 (or 9040652 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 97212308516 in words is "ninety-seven billion, two hundred twelve million, three hundred eight thousand, five hundred sixteen".