11540643346 has 32 divisors (see below), whose sum is σ = 18519798528. Its totient is φ = 5380277760.

The previous prime is 11540643319. The next prime is 11540643349. The reversal of 11540643346 is 64334604511.

11540643346 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×11540643346³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (11540643349) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3481786 + ... + 3485098.

It is an arithmetic number, because the mean of its divisors is an integer number (578743704).

Almost surely, 2^11540643346 is an apocalyptic number.

11540643346 is a deficient number, since it is larger than the sum of its proper divisors (6979155182).

11540643346 is a wasteful number, since it uses less digits than its factorization.

11540643346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5226.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 11540643346 in words is "eleven billion, five hundred forty million, six hundred forty-three thousand, three hundred forty-six".