11621776705 has 32 divisors (see below), whose sum is σ = 17395411968. Its totient is φ = 7241400000.

The previous prime is 11621776681. The next prime is 11621776717. The reversal of 11621776705 is 50767712611.

11621776705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11621776705 - 2¹⁵ = 11621743937 is a prime.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1027330 + ... + 1038580.

It is an arithmetic number, because the mean of its divisors is an integer number (543606624).

Almost surely, 2^11621776705 is an apocalyptic number.

It is an amenable number.

11621776705 is a deficient number, since it is larger than the sum of its proper divisors (5773635263).

11621776705 is a wasteful number, since it uses less digits than its factorization.

11621776705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13957.

The product of its (nonzero) digits is 123480, while the sum is 43.

The spelling of 11621776705 in words is "eleven billion, six hundred twenty-one million, seven hundred seventy-six thousand, seven hundred five".