9972116632 has 32 divisors (see below), whose sum is σ = 20171138400. Its totient is φ = 4604214784.

The previous prime is 9972116629. The next prime is 9972116633. The reversal of 9972116632 is 2366112799.

It is a happy number.

It is a super-2 number, since 2×9972116632² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9972116633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 684532 + ... + 698947.

It is an arithmetic number, because the mean of its divisors is an integer number (630348075).

Almost surely, 2^9972116632 is an apocalyptic number.

It is an amenable number.

9972116632 is an abundant number, since it is smaller than the sum of its proper divisors (10199021768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9972116632 is a wasteful number, since it uses less digits than its factorization.

9972116632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1383555 (or 1383551 counting only the distinct ones).

The product of its digits is 244944, while the sum is 46.

The square root of 9972116632 is about 99860.4858389944. The cubic root of 9972116632 is about 2152.4303961507.

The spelling of 9972116632 in words is "nine billion, nine hundred seventy-two million, one hundred sixteen thousand, six hundred thirty-two".