2155533411040 has 96 divisors (see below), whose sum is σ = 5269834080000. Its totient is φ = 832318464000.

The previous prime is 2155533411037. The next prime is 2155533411041. The reversal of 2155533411040 is 401143355512.

It is a super-2 number, since 2×2155533411040² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2155533410987 and 2155533411005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155533411041) 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, 1447086 + ... + 2530834.

It is an arithmetic number, because the mean of its divisors is an integer number (54894105000).

Almost surely, 2^{2155533411040} is an apocalyptic number.

2155533411040 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 2155533411040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2634917040000).

2155533411040 is an abundant number, since it is smaller than the sum of its proper divisors (3114300668960).

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

2155533411040 is a wasteful number, since it uses less digits than its factorization.

2155533411040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084196 (or 1084188 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 2155533411040 its reverse (401143355512), we get a palindrome (2556676766552).

The spelling of 2155533411040 in words is "two trillion, one hundred fifty-five billion, five hundred thirty-three million, four hundred eleven thousand, forty".