2011656534 has 8 divisors (see below), whose sum is σ = 4023313080. Its totient is φ = 670552176.

The previous prime is 2011656523. The next prime is 2011656593. The reversal of 2011656534 is 4356561102.

It is a sphenic number, since it is the product of 3 distinct primes.

2011656534 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 2011656495 and 2011656504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167638039 + ... + 167638050.

It is an arithmetic number, because the mean of its divisors is an integer number (502914135).

Almost surely, 2^2011656534 is an apocalyptic number.

2011656534 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2011656534 is a wasteful number, since it uses less digits than its factorization.

2011656534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335276094.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 2011656534 is about 44851.4942226009. The cubic root of 2011656534 is about 1262.3640286724.

The spelling of 2011656534 in words is "two billion, eleven million, six hundred fifty-six thousand, five hundred thirty-four".