159337661 has 24 divisors (see below), whose sum is σ = 193818240. Its totient is φ = 130479552.

The previous prime is 159337649. The next prime is 159337669. The reversal of 159337661 is 166733951.

It is not a de Polignac number, because 159337661 - 2⁶ = 159337597 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159337669) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98225 + ... + 99833.

It is an arithmetic number, because the mean of its divisors is an integer number (8075760).

Almost surely, 2^159337661 is an apocalyptic number.

It is an amenable number.

159337661 is a deficient number, since it is larger than the sum of its proper divisors (34480579).

159337661 is a wasteful number, since it uses less digits than its factorization.

159337661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1713 (or 1706 counting only the distinct ones).

The product of its digits is 102060, while the sum is 41.

The square root of 159337661 is about 12622.9022415608. The cubic root of 159337661 is about 542.1333769875.

The spelling of 159337661 in words is "one hundred fifty-nine million, three hundred thirty-seven thousand, six hundred sixty-one".