1661792088 has 32 divisors (see below), whose sum is σ = 4532160960. Its totient is φ = 503573280.

The previous prime is 1661792071. The next prime is 1661792141. The reversal of 1661792088 is 8802971661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3147070 + ... + 3147597.

It is an arithmetic number, because the mean of its divisors is an integer number (141630030).

Almost surely, 2^1661792088 is an apocalyptic number.

It is an amenable number.

1661792088 is an abundant number, since it is smaller than the sum of its proper divisors (2870368872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1661792088 is a wasteful number, since it uses less digits than its factorization.

1661792088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6294687 (or 6294683 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 48.

The square root of 1661792088 is about 40765.0841775164. The cubic root of 1661792088 is about 1184.4740823515.

The spelling of 1661792088 in words is "one billion, six hundred sixty-one million, seven hundred ninety-two thousand, eighty-eight".