2166690103 has 8 divisors (see below), whose sum is σ = 2323183680. Its totient is φ = 2013423360.

The previous prime is 2166690073. The next prime is 2166690109. The reversal of 2166690103 is 3010966612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2166690103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166690109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 805318 + ... + 808003.

It is an arithmetic number, because the mean of its divisors is an integer number (290397960).

Almost surely, 2^2166690103 is an apocalyptic number.

2166690103 is a deficient number, since it is larger than the sum of its proper divisors (156493577).

2166690103 is a wasteful number, since it uses less digits than its factorization.

2166690103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613417.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 2166690103 is about 46547.7185584858. The cubic root of 2166690103 is about 1293.9940116873.

The spelling of 2166690103 in words is "two billion, one hundred sixty-six million, six hundred ninety thousand, one hundred three".