159551680 has 28 divisors (see below), whose sum is σ = 379933200. Its totient is φ = 63820544.

The previous prime is 159551671. The next prime is 159551687. The reversal of 159551680 is 86155951.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (159551687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248980 + ... + 249619.

Almost surely, 2^159551680 is an apocalyptic number.

159551680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

159551680 is an abundant number, since it is smaller than the sum of its proper divisors (220381520).

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

159551680 is an equidigital number, since it uses as much as digits as its factorization.

159551680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498616 (or 498606 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 40.

The square root of 159551680 is about 12631.3768054001. The cubic root of 159551680 is about 542.3759957819.

The spelling of 159551680 in words is "one hundred fifty-nine million, five hundred fifty-one thousand, six hundred eighty".