159570640 has 120 divisors (see below), whose sum is σ = 401974272. Its totient is φ = 58821120.

The previous prime is 159570637. The next prime is 159570641. The reversal of 159570640 is 46075951.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 159570640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159570641) 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, 3395097 + ... + 3395143.

Almost surely, 2^159570640 is an apocalyptic number.

159570640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 159570640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200987136).

159570640 is an abundant number, since it is smaller than the sum of its proper divisors (242403632).

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

159570640 is a wasteful number, since it uses less digits than its factorization.

159570640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 37.

The square root of 159570640 is about 12632.1272951154. The cubic root of 159570640 is about 542.3974789811.

The spelling of 159570640 in words is "one hundred fifty-nine million, five hundred seventy thousand, six hundred forty".