55001615566 has 8 divisors (see below), whose sum is σ = 82503487440. Its totient is φ = 27500453088.

The previous prime is 55001615519. The next prime is 55001615611. The reversal of 55001615566 is 66551610055.

55001615566 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

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, 108870 + ... + 349078.

It is an arithmetic number, because the mean of its divisors is an integer number (10312935930).

Almost surely, 2^55001615566 is an apocalyptic number.

55001615566 is a deficient number, since it is larger than the sum of its proper divisors (27501871874).

55001615566 is a wasteful number, since it uses less digits than its factorization.

55001615566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354698.

The product of its (nonzero) digits is 135000, while the sum is 40.

The spelling of 55001615566 in words is "fifty-five billion, one million, six hundred fifteen thousand, five hundred sixty-six".