55215515061706 has 32 divisors (see below), whose sum is σ = 87733062144000. Its totient is φ = 25972564730112.

The previous prime is 55215515061683. The next prime is 55215515061713. The reversal of 55215515061706 is 60716051551255.

It is a self number, because there is not a number n which added to its sum of digits gives 55215515061706.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 801596175 + ... + 801665053.

It is an arithmetic number, because the mean of its divisors is an integer number (2741658192000).

Almost surely, 2^{55215515061706} is an apocalyptic number.

55215515061706 is a deficient number, since it is larger than the sum of its proper divisors (32517547082294).

55215515061706 is a wasteful number, since it uses less digits than its factorization.

55215515061706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78726.

The product of its (nonzero) digits is 1575000, while the sum is 49.

The spelling of 55215515061706 in words is "fifty-five trillion, two hundred fifteen billion, five hundred fifteen million, sixty-one thousand, seven hundred six".