1659745334688 has 48 divisors (see below), whose sum is σ = 4979236006080. Its totient is φ = 474212952576.

The previous prime is 1659745334603. The next prime is 1659745334711. The reversal of 1659745334688 is 8864335479561.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×1659745334688² (a number of 25 digits) contains 22 as substring.

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, 1234928893 + ... + 1234930236.

It is an arithmetic number, because the mean of its divisors is an integer number (103734083460).

Almost surely, 2^{1659745334688} is an apocalyptic number.

It is an amenable number.

1659745334688 is an abundant number, since it is smaller than the sum of its proper divisors (3319490671392).

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

1659745334688 is a wasteful number, since it uses less digits than its factorization.

1659745334688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2469859149 (or 2469859141 counting only the distinct ones).

The product of its digits is 522547200, while the sum is 69.

The spelling of 1659745334688 in words is "one trillion, six hundred fifty-nine billion, seven hundred forty-five million, three hundred thirty-four thousand, six hundred eighty-eight".