2099660146 has 8 divisors (see below), whose sum is σ = 3258093420. Its totient is φ = 1013629008.

The previous prime is 2099660131. The next prime is 2099660149. The reversal of 2099660146 is 6410669902.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2006054521 + 93605625 = 44789^2 + 9675^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2099660149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18100461 + ... + 18100576.

Almost surely, 2^2099660146 is an apocalyptic number.

2099660146 is a deficient number, since it is larger than the sum of its proper divisors (1158433274).

2099660146 is a wasteful number, since it uses less digits than its factorization.

2099660146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36201068.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 2099660146 is about 45822.0486883771. The cubic root of 2099660146 is about 1280.5100803159.

The spelling of 2099660146 in words is "two billion, ninety-nine million, six hundred sixty thousand, one hundred forty-six".