159757980 has 48 divisors (see below), whose sum is σ = 447909504. Its totient is φ = 42546240.

The previous prime is 159757967. The next prime is 159757981. The reversal of 159757980 is 89757951.

159757980 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×159757980² = 51045224347360800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159757981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66195 + ... + 68565.

It is an arithmetic number, because the mean of its divisors is an integer number (9331448).

Almost surely, 2^159757980 is an apocalyptic number.

159757980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

159757980 is an abundant number, since it is smaller than the sum of its proper divisors (288151524).

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

159757980 is a wasteful number, since it uses less digits than its factorization.

159757980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3506 (or 3504 counting only the distinct ones).

The product of its (nonzero) digits is 793800, while the sum is 51.

The square root of 159757980 is about 12639.5403397434. The cubic root of 159757980 is about 542.6096587913.

The spelling of 159757980 in words is "one hundred fifty-nine million, seven hundred fifty-seven thousand, nine hundred eighty".