11706631585 has 16 divisors (see below), whose sum is σ = 15540895872. Its totient is φ = 8393996800.

The previous prime is 11706631583. The next prime is 11706631597. The reversal of 11706631585 is 58513660711.

It is not a de Polignac number, because 11706631585 - 2¹ = 11706631583 is a prime.

It is a super-2 number, since 2×11706631585² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11706631583) 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, 1495024 + ... + 1502833.

It is an arithmetic number, because the mean of its divisors is an integer number (971305992).

Almost surely, 2^11706631585 is an apocalyptic number.

It is an amenable number.

11706631585 is a deficient number, since it is larger than the sum of its proper divisors (3834264287).

11706631585 is a wasteful number, since it uses less digits than its factorization.

11706631585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2997944.

The product of its (nonzero) digits is 151200, while the sum is 43.

The spelling of 11706631585 in words is "eleven billion, seven hundred six million, six hundred thirty-one thousand, five hundred eighty-five".