2166555350 has 24 divisors (see below), whose sum is σ = 4138709808. Its totient is φ = 843199200.

The previous prime is 2166555341. The next prime is 2166555353. The reversal of 2166555350 is 535556612.

It is a super-2 number, since 2×2166555350² = 9387924169227245000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166555353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 583706 + ... + 587405.

It is an arithmetic number, because the mean of its divisors is an integer number (172446242).

Almost surely, 2^2166555350 is an apocalyptic number.

2166555350 is a deficient number, since it is larger than the sum of its proper divisors (1972154458).

2166555350 is a wasteful number, since it uses less digits than its factorization.

2166555350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171160 (or 1171155 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 38.

The square root of 2166555350 is about 46546.2710643935. The cubic root of 2166555350 is about 1293.9671853328.

The spelling of 2166555350 in words is "two billion, one hundred sixty-six million, five hundred fifty-five thousand, three hundred fifty".