9916454574 has 72 divisors (see below), whose sum is σ = 23492149200. Its totient is φ = 3021497856.

The previous prime is 9916454573. The next prime is 9916454609. The reversal of 9916454574 is 4754546199.

9916454574 is a `hidden beast` number, since 9 + 9 + 1 + 64 + 5 + 4 + 574 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 9916454574.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9916454573) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 297502 + ... + 329150.

It is an arithmetic number, because the mean of its divisors is an integer number (326279850).

Almost surely, 2^9916454574 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9916454574, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11746074600).

9916454574 is an abundant number, since it is smaller than the sum of its proper divisors (13575694626).

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

9916454574 is a wasteful number, since it uses less digits than its factorization.

9916454574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31786 (or 31770 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 54.

The square root of 9916454574 is about 99581.3967264971. The cubic root of 9916454574 is about 2148.4181314636.

The spelling of 9916454574 in words is "nine billion, nine hundred sixteen million, four hundred fifty-four thousand, five hundred seventy-four".