972221163495 has 64 divisors (see below), whose sum is σ = 1587548160000. Its totient is φ = 507919363200.

The previous prime is 972221163481. The next prime is 972221163497. The reversal of 972221163495 is 594361122279.

It is not a de Polignac number, because 972221163495 - 2⁴ = 972221163479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (972221163497) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 381112470 + ... + 381115020.

It is an arithmetic number, because the mean of its divisors is an integer number (24805440000).

Almost surely, 2^972221163495 is an apocalyptic number.

972221163495 is a deficient number, since it is larger than the sum of its proper divisors (615326996505).

972221163495 is a wasteful number, since it uses less digits than its factorization.

972221163495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3980.

The product of its digits is 1632960, while the sum is 51.

The spelling of 972221163495 in words is "nine hundred seventy-two billion, two hundred twenty-one million, one hundred sixty-three thousand, four hundred ninety-five".