9972067611215 has 4 divisors (see below), whose sum is σ = 11966481133464. Its totient is φ = 7977654088968.

The previous prime is 9972067611199. The next prime is 9972067611229. The reversal of 9972067611215 is 5121167602799.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9972067611215 - 2⁴ = 9972067611199 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 997206761117 + ... + 997206761126.

It is an arithmetic number, because the mean of its divisors is an integer number (2991620283366).

Almost surely, 2^{9972067611215} is an apocalyptic number.

9972067611215 is a deficient number, since it is larger than the sum of its proper divisors (1994413522249).

9972067611215 is a wasteful number, since it uses less digits than its factorization.

9972067611215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1994413522248.

The product of its (nonzero) digits is 2857680, while the sum is 56.

The spelling of 9972067611215 in words is "nine trillion, nine hundred seventy-two billion, sixty-seven million, six hundred eleven thousand, two hundred fifteen".