11523664566406 has 16 divisors (see below), whose sum is σ = 17290525140000. Its totient is φ = 5760156362688.

The previous prime is 11523664566371. The next prime is 11523664566451. The reversal of 11523664566406 is 60466546632511.

It is a super-3 number, since 3×11523664566406³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182933191 + ... + 182996173.

It is an arithmetic number, because the mean of its divisors is an integer number (1080657821250).

Almost surely, 2^{11523664566406} is an apocalyptic number.

11523664566406 is a deficient number, since it is larger than the sum of its proper divisors (5766860573594).

11523664566406 is a wasteful number, since it uses less digits than its factorization.

11523664566406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88143.

The product of its (nonzero) digits is 18662400, while the sum is 55.

The spelling of 11523664566406 in words is "eleven trillion, five hundred twenty-three billion, six hundred sixty-four million, five hundred sixty-six thousand, four hundred six".