166010511116655 has 32 divisors (see below), whose sum is σ = 295279382301120. Its totient is φ = 88494063834240.

The previous prime is 166010511116641. The next prime is 166010511116761. The reversal of 166010511116655 is 556611115010661.

166010511116655 is a `hidden beast` number, since 1 + 6 + 6 + 0 + 10 + 511 + 11 + 66 + 55 = 666.

It is not a de Polignac number, because 166010511116655 - 2¹¹ = 166010511114607 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 166010511116655.

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, 311367576 + ... + 311900285.

It is an arithmetic number, because the mean of its divisors is an integer number (9227480696910).

Almost surely, 2^{166010511116655} is an apocalyptic number.

166010511116655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

166010511116655 is a deficient number, since it is larger than the sum of its proper divisors (129268871184465).

166010511116655 is a wasteful number, since it uses less digits than its factorization.

166010511116655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623269848 (or 623269842 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 45.

The spelling of 166010511116655 in words is "one hundred sixty-six trillion, ten billion, five hundred eleven million, one hundred sixteen thousand, six hundred fifty-five".