1659538474 has 48 divisors (see below), whose sum is σ = 2829324960. Its totient is φ = 729036000.

The previous prime is 1659538423. The next prime is 1659538483. The reversal of 1659538474 is 4748359561.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1050217 + ... + 1051795.

It is an arithmetic number, because the mean of its divisors is an integer number (58944270).

Almost surely, 2^1659538474 is an apocalyptic number.

1659538474 is a deficient number, since it is larger than the sum of its proper divisors (1169786486).

1659538474 is a wasteful number, since it uses less digits than its factorization.

1659538474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1747 (or 1736 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 52.

The square root of 1659538474 is about 40737.4333261191. The cubic root of 1659538474 is about 1183.9384046398.

The spelling of 1659538474 in words is "one billion, six hundred fifty-nine million, five hundred thirty-eight thousand, four hundred seventy-four".