2991186016 has 96 divisors (see below), whose sum is σ = 7385007168. Its totient is φ = 1160939520.

The previous prime is 2991185983. The next prime is 2991186019. The reversal of 2991186016 is 6106811992.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2991186019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144646 + ... + 164026.

It is an arithmetic number, because the mean of its divisors is an integer number (76927158).

Almost surely, 2^2991186016 is an apocalyptic number.

2991186016 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2991186016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3692503584).

2991186016 is an abundant number, since it is smaller than the sum of its proper divisors (4393821152).

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

2991186016 is a wasteful number, since it uses less digits than its factorization.

2991186016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19464 (or 19456 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 43.

The square root of 2991186016 is about 54691.7362679226. The cubic root of 2991186016 is about 1440.8357442825.

The spelling of 2991186016 in words is "two billion, nine hundred ninety-one million, one hundred eighty-six thousand, sixteen".