2011510012158 has 24 divisors (see below), whose sum is σ = 4359189216096. Its totient is φ = 670362180000.

The previous prime is 2011510012123. The next prime is 2011510012159. The reversal of 2011510012158 is 8512100151102.

2011510012158 is a `hidden beast` number, since 20 + 1 + 1 + 510 + 0 + 121 + 5 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011510012159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11675223 + ... + 11846258.

It is an arithmetic number, because the mean of its divisors is an integer number (181632884004).

Almost surely, 2^{2011510012158} is an apocalyptic number.

2011510012158 is an abundant number, since it is smaller than the sum of its proper divisors (2347679203938).

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

2011510012158 is a wasteful number, since it uses less digits than its factorization.

2011510012158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23526240 (or 23526237 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 27.

The spelling of 2011510012158 in words is "two trillion, eleven billion, five hundred ten million, twelve thousand, one hundred fifty-eight".