1816001152 has 160 divisors (see below), whose sum is σ = 4456951200. Its totient is φ = 734952960.

The previous prime is 1816001147. The next prime is 1816001153. The reversal of 1816001152 is 2511006181.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1816001153) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5839077 + ... + 5839387.

It is an arithmetic number, because the mean of its divisors is an integer number (27855945).

Almost surely, 2^1816001152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1816001152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2228475600).

1816001152 is an abundant number, since it is smaller than the sum of its proper divisors (2640950048).

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

1816001152 is an frugal number, since it uses more digits than its factorization.

1816001152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 25.

The square root of 1816001152 is about 42614.5650218326. The cubic root of 1816001152 is about 1220.0342980593.

The spelling of 1816001152 in words is "one billion, eight hundred sixteen million, one thousand, one hundred fifty-two".