1816153086 has 64 divisors (see below), whose sum is σ = 4011171840. Its totient is φ = 543634560.

The previous prime is 1816153081. The next prime is 1816153093. The reversal of 1816153086 is 6803516181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1816153081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3260320 + ... + 3260876.

It is an arithmetic number, because the mean of its divisors is an integer number (62674560).

Almost surely, 2^1816153086 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1816153086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2005585920).

1816153086 is an abundant number, since it is smaller than the sum of its proper divisors (2195018754).

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

1816153086 is a wasteful number, since it uses less digits than its factorization.

1816153086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089.

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 1816153086 is about 42616.3476379663. The cubic root of 1816153086 is about 1220.0683214448.

The spelling of 1816153086 in words is "one billion, eight hundred sixteen million, one hundred fifty-three thousand, eighty-six".