11643155262340 has 96 divisors (see below), whose sum is σ = 29596432852224. Its totient is φ = 3755960832000.

The previous prime is 11643155262337. The next prime is 11643155262341. The reversal of 11643155262340 is 4326255134611.

It is not an unprimeable number, because it can be changed into a prime (11643155262341) 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, 6984984 + ... + 8489776.

It is an arithmetic number, because the mean of its divisors is an integer number (308296175544).

Almost surely, 2^{11643155262340} is an apocalyptic number.

11643155262340 is a gapful number since it is divisible by the number (10) 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 11643155262340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14798216426112).

11643155262340 is an abundant number, since it is smaller than the sum of its proper divisors (17953277589884).

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

11643155262340 is a wasteful number, since it uses less digits than its factorization.

11643155262340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508077 (or 1508075 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 11643155262340 in words is "eleven trillion, six hundred forty-three billion, one hundred fifty-five million, two hundred sixty-two thousand, three hundred forty".