2215154818240 has 504 divisors, whose sum is σ = 6746252456160. Its totient is φ = 678333726720.

The previous prime is 2215154818231. The next prime is 2215154818249. The reversal of 2215154818240 is 428184515122.

It is an interprime number because it is at equal distance from previous prime (2215154818231) and next prime (2215154818249).

It is not an unprimeable number, because it can be changed into a prime (2215154818249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 363793116 + ... + 363799204.

It is an arithmetic number, because the mean of its divisors is an integer number (13385421540).

Almost surely, 2^{2215154818240} is an apocalyptic number.

2215154818240 is a gapful number since it is divisible by the number (20) 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 2215154818240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3373126228080).

2215154818240 is an abundant number, since it is smaller than the sum of its proper divisors (4531097637920).

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

2215154818240 is a wasteful number, since it uses less digits than its factorization.

2215154818240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6201 (or 6147 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 43.

The spelling of 2215154818240 in words is "two trillion, two hundred fifteen billion, one hundred fifty-four million, eight hundred eighteen thousand, two hundred forty".