1660106650655 has 32 divisors (see below), whose sum is σ = 2156253547200. Its totient is φ = 1222702221312.

The previous prime is 1660106650619. The next prime is 1660106650679. The reversal of 1660106650655 is 5560566010661.

It is a cyclic number.

It is not a de Polignac number, because 1660106650655 - 2⁸ = 1660106650399 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2629079 + ... + 3198791.

It is an arithmetic number, because the mean of its divisors is an integer number (67382923350).

Almost surely, 2^{1660106650655} is an apocalyptic number.

1660106650655 is a deficient number, since it is larger than the sum of its proper divisors (496146896545).

1660106650655 is a wasteful number, since it uses less digits than its factorization.

1660106650655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570603.

The product of its (nonzero) digits is 972000, while the sum is 47.

The spelling of 1660106650655 in words is "one trillion, six hundred sixty billion, one hundred six million, six hundred fifty thousand, six hundred fifty-five".