1661833092 has 12 divisors (see below), whose sum is σ = 3877610576. Its totient is φ = 553944360.

The previous prime is 1661833057. The next prime is 1661833109. The reversal of 1661833092 is 2903381661.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1661833092.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69243034 + ... + 69243057.

Almost surely, 2^1661833092 is an apocalyptic number.

1661833092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1661833092 is an abundant number, since it is smaller than the sum of its proper divisors (2215777484).

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

1661833092 is a wasteful number, since it uses less digits than its factorization.

1661833092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138486098 (or 138486096 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 1661833092 is about 40765.5871048118. The cubic root of 1661833092 is about 1184.4838243997.

The spelling of 1661833092 in words is "one billion, six hundred sixty-one million, eight hundred thirty-three thousand, ninety-two".