55115006666 has 8 divisors (see below), whose sum is σ = 82698122820. Its totient is φ = 27548965728.

The previous prime is 55115006657. The next prime is 55115006729. The reversal of 55115006666 is 66660051155.

It can be written as a sum of positive squares in 2 ways, for example, as 54882901441 + 232105225 = 234271^2 + 15235^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4260731 + ... + 4273646.

Almost surely, 2^55115006666 is an apocalyptic number.

55115006666 is a deficient number, since it is larger than the sum of its proper divisors (27583116154).

55115006666 is a wasteful number, since it uses less digits than its factorization.

55115006666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8537608.

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 55115006666 in words is "fifty-five billion, one hundred fifteen million, six thousand, six hundred sixty-six".