11621435666666 has 16 divisors (see below), whose sum is σ = 19926222353856. Its totient is φ = 4979674982976.

The previous prime is 11621435666629. The next prime is 11621435666677. The reversal of 11621435666666 is 66666653412611.

11621435666666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 78281756 + ... + 78430071.

It is an arithmetic number, because the mean of its divisors is an integer number (1245388897116).

Almost surely, 2^{11621435666666} is an apocalyptic number.

11621435666666 is a deficient number, since it is larger than the sum of its proper divisors (8304786687190).

11621435666666 is a wasteful number, since it uses less digits than its factorization.

11621435666666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156717133.

The product of its digits is 33592320, while the sum is 59.

The spelling of 11621435666666 in words is "eleven trillion, six hundred twenty-one billion, four hundred thirty-five million, six hundred sixty-six thousand, six hundred sixty-six".