1659087372 has 24 divisors (see below), whose sum is σ = 4074952000. Its totient is φ = 523922256.

The previous prime is 1659087347. The next prime is 1659087373. The reversal of 1659087372 is 2737809561.

It is not an unprimeable number, because it can be changed into a prime (1659087373) 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, 3638122 + ... + 3638577.

Almost surely, 2^1659087372 is an apocalyptic number.

1659087372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1659087372 is an abundant number, since it is smaller than the sum of its proper divisors (2415864628).

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

1659087372 is a wasteful number, since it uses less digits than its factorization.

1659087372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7276725 (or 7276723 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 48.

The square root of 1659087372 is about 40731.8962485176. The cubic root of 1659087372 is about 1183.8311207193.

The spelling of 1659087372 in words is "one billion, six hundred fifty-nine million, eighty-seven thousand, three hundred seventy-two".