2166090524 has 12 divisors (see below), whose sum is σ = 4082247624. Its totient is φ = 999734064.

The previous prime is 2166090349. The next prime is 2166090539. The reversal of 2166090524 is 4250906612.

It is a happy number.

It is a super-3 number, since 3×2166090524³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20827742 + ... + 20827845.

It is an arithmetic number, because the mean of its divisors is an integer number (340187302).

Almost surely, 2^2166090524 is an apocalyptic number.

It is an amenable number.

2166090524 is a deficient number, since it is larger than the sum of its proper divisors (1916157100).

2166090524 is a wasteful number, since it uses less digits than its factorization.

2166090524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41655604 (or 41655602 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 2166090524 is about 46541.2776360942. The cubic root of 2166090524 is about 1293.8746401766.

The spelling of 2166090524 in words is "two billion, one hundred sixty-six million, ninety thousand, five hundred twenty-four".