9990416172 has 24 divisors (see below), whose sum is σ = 25430150592. Its totient is φ = 3027398800.

The previous prime is 9990416153. The next prime is 9990416173. The reversal of 9990416172 is 2716140999.

It is not an unprimeable number, because it can be changed into a prime (9990416173) 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, 37842354 + ... + 37842617.

It is an arithmetic number, because the mean of its divisors is an integer number (1059589608).

Almost surely, 2^9990416172 is an apocalyptic number.

It is an amenable number.

9990416172 is an abundant number, since it is smaller than the sum of its proper divisors (15439734420).

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

9990416172 is a wasteful number, since it uses less digits than its factorization.

9990416172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75684989 (or 75684987 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 48.

The square root of 9990416172 is about 99952.0693732751. The cubic root of 9990416172 is about 2153.7462123264.

The spelling of 9990416172 in words is "nine billion, nine hundred ninety million, four hundred sixteen thousand, one hundred seventy-two".