2011151551156 has 48 divisors (see below), whose sum is σ = 3858317632512. Its totient is φ = 909680738400.

The previous prime is 2011151551151. The next prime is 2011151551183. The reversal of 2011151551156 is 6511551511102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011151551151) 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, 9759175 + ... + 9963121.

It is an arithmetic number, because the mean of its divisors is an integer number (80381617344).

Almost surely, 2^{2011151551156} is an apocalyptic number.

It is an amenable number.

2011151551156 is a deficient number, since it is larger than the sum of its proper divisors (1847166081356).

2011151551156 is a wasteful number, since it uses less digits than its factorization.

2011151551156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205060 (or 205058 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 34.

The spelling of 2011151551156 in words is "two trillion, eleven billion, one hundred fifty-one million, five hundred fifty-one thousand, one hundred fifty-six".