1659979932 has 24 divisors (see below), whose sum is σ = 4171232016. Its totient is φ = 510763008.

The previous prime is 1659979931. The next prime is 1659979933. The reversal of 1659979932 is 2399799561.

It is an interprime number because it is at equal distance from previous prime (1659979931) and next prime (1659979933).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1659979931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5320293 + ... + 5320604.

It is an arithmetic number, because the mean of its divisors is an integer number (173801334).

Almost surely, 2^1659979932 is an apocalyptic number.

1659979932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1659979932 is an abundant number, since it is smaller than the sum of its proper divisors (2511252084).

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

1659979932 is a wasteful number, since it uses less digits than its factorization.

1659979932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10640917 (or 10640915 counting only the distinct ones).

The product of its digits is 8266860, while the sum is 60.

The square root of 1659979932 is about 40742.8512993384. The cubic root of 1659979932 is about 1184.0433761425.

The spelling of 1659979932 in words is "one billion, six hundred fifty-nine million, nine hundred seventy-nine thousand, nine hundred thirty-two".