1659096861 has 32 divisors (see below), whose sum is σ = 2370041856. Its totient is φ = 1028736000.

The previous prime is 1659096841. The next prime is 1659096869. The reversal of 1659096861 is 1686909561.

It is not a de Polignac number, because 1659096861 - 2⁶ = 1659096797 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1659096869) 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, 1762651 + ... + 1763591.

It is an arithmetic number, because the mean of its divisors is an integer number (74063808).

Almost surely, 2^1659096861 is an apocalyptic number.

It is an amenable number.

1659096861 is a deficient number, since it is larger than the sum of its proper divisors (710944995).

1659096861 is a wasteful number, since it uses less digits than its factorization.

1659096861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333.

The product of its (nonzero) digits is 699840, while the sum is 51.

The square root of 1659096861 is about 40732.0127295473. The cubic root of 1659096861 is about 1183.8333776533.

The spelling of 1659096861 in words is "one billion, six hundred fifty-nine million, ninety-six thousand, eight hundred sixty-one".