1656359099 has 16 divisors (see below), whose sum is σ = 1806477120. Its totient is φ = 1513881600.

The previous prime is 1656359087. The next prime is 1656359119. The reversal of 1656359099 is 9909536561.

It is a cyclic number.

It is not a de Polignac number, because 1656359099 - 2¹² = 1656355003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1656359099.

It is not an unprimeable number, because it can be changed into a prime (1656359399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51899 + ... + 77499.

It is an arithmetic number, because the mean of its divisors is an integer number (112904820).

Almost surely, 2^1656359099 is an apocalyptic number.

1656359099 is a deficient number, since it is larger than the sum of its proper divisors (150118021).

1656359099 is a wasteful number, since it uses less digits than its factorization.

1656359099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25750.

The product of its (nonzero) digits is 1968300, while the sum is 53.

The square root of 1656359099 is about 40698.3918478360. The cubic root of 1656359099 is about 1183.1818508112.

The spelling of 1656359099 in words is "one billion, six hundred fifty-six million, three hundred fifty-nine thousand, ninety-nine".