1656000099 has 32 divisors (see below), whose sum is σ = 2644992000. Its totient is φ = 1017943200.

The previous prime is 1656000097. The next prime is 1656000121. The reversal of 1656000099 is 9900006561.

1656000099 is a `hidden beast` number, since 1 + 6 + 560 + 0 + 0 + 0 + 99 = 666.

It is not a de Polignac number, because 1656000099 - 2¹ = 1656000097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1656000091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 401952 + ... + 406050.

It is an arithmetic number, because the mean of its divisors is an integer number (82656000).

Almost surely, 2^1656000099 is an apocalyptic number.

1656000099 is a deficient number, since it is larger than the sum of its proper divisors (988991901).

1656000099 is a wasteful number, since it uses less digits than its factorization.

1656000099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5272 (or 5266 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 1656000099 is about 40693.9811151477. The cubic root of 1656000099 is about 1183.0963635163.

The spelling of 1656000099 in words is "one billion, six hundred fifty-six million, ninety-nine", and thus it is an aban number.