2011255523040 has 48 divisors (see below), whose sum is σ = 6335454899088. Its totient is φ = 536334806016.

The previous prime is 2011255523029. The next prime is 2011255523047. The reversal of 2011255523040 is 403255521102.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2011255522989 and 2011255523007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011255523047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2095057357 + ... + 2095058316.

It is an arithmetic number, because the mean of its divisors is an integer number (131988643731).

Almost surely, 2^{2011255523040} is an apocalyptic number.

2011255523040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2011255523040 is an abundant number, since it is smaller than the sum of its proper divisors (4324199376048).

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

2011255523040 is a wasteful number, since it uses less digits than its factorization.

2011255523040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4190115691 (or 4190115683 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 2011255523040 in words is "two trillion, eleven billion, two hundred fifty-five million, five hundred twenty-three thousand, forty".