2166445650535 has 32 divisors (see below), whose sum is σ = 2654964449280. Its totient is φ = 1696766697600.

The previous prime is 2166445650511. The next prime is 2166445650569. The reversal of 2166445650535 is 5350565446612.

It is not a de Polignac number, because 2166445650535 - 2¹³ = 2166445642343 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, 23417229 + ... + 23509561.

It is an arithmetic number, because the mean of its divisors is an integer number (82967639040).

Almost surely, 2^{2166445650535} is an apocalyptic number.

2166445650535 is a deficient number, since it is larger than the sum of its proper divisors (488518798745).

2166445650535 is a wasteful number, since it uses less digits than its factorization.

2166445650535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92919.

The product of its (nonzero) digits is 12960000, while the sum is 52.

The spelling of 2166445650535 in words is "two trillion, one hundred sixty-six billion, four hundred forty-five million, six hundred fifty thousand, five hundred thirty-five".