11656724751005 has 16 divisors (see below), whose sum is σ = 14078487440304. Its totient is φ = 9265112463360.

The previous prime is 11656724750971. The next prime is 11656724751059. The reversal of 11656724751005 is 50015742765611.

It can be written as a sum of positive squares in 8 ways, for example, as 992280953689 + 10664443797316 = 996133^2 + 3265646^2 .

It is not a de Polignac number, because 11656724751005 - 2²⁶ = 11656657642141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7733645 + ... + 9117165.

It is an arithmetic number, because the mean of its divisors is an integer number (879905465019).

Almost surely, 2^{11656724751005} is an apocalyptic number.

It is an amenable number.

11656724751005 is a deficient number, since it is larger than the sum of its proper divisors (2421762689299).

11656724751005 is a wasteful number, since it uses less digits than its factorization.

11656724751005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1394416.

The product of its (nonzero) digits is 1764000, while the sum is 50.

The spelling of 11656724751005 in words is "eleven trillion, six hundred fifty-six billion, seven hundred twenty-four million, seven hundred fifty-one thousand, five".