2011011612174 has 80 divisors (see below), whose sum is σ = 4665681543600. Its totient is φ = 646647152256.

The previous prime is 2011011612157. The next prime is 2011011612187. The reversal of 2011011612174 is 4712161101102.

2011011612174 is a `hidden beast` number, since 20 + 1 + 1 + 0 + 11 + 612 + 17 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5114469 + ... + 5493615.

It is an arithmetic number, because the mean of its divisors is an integer number (58321019295).

Almost surely, 2^{2011011612174} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2011011612174, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2332840771800).

2011011612174 is an abundant number, since it is smaller than the sum of its proper divisors (2654669931426).

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

2011011612174 is a wasteful number, since it uses less digits than its factorization.

2011011612174 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380319 (or 380310 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 27.

Adding to 2011011612174 its reverse (4712161101102), we get a palindrome (6723172713276).

The spelling of 2011011612174 in words is "two trillion, eleven billion, eleven million, six hundred twelve thousand, one hundred seventy-four".