159667128720 has 800 divisors, whose sum is σ = 625862692224. Its totient is φ = 37391155200.

The previous prime is 159667128713. The next prime is 159667128781. The reversal of 159667128720 is 27821766951.

159667128720 is a `hidden beast` number, since 1 + 596 + 6 + 7 + 1 + 28 + 7 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 346349290 + ... + 346349750.

Almost surely, 2^159667128720 is an apocalyptic number.

159667128720 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 159667128720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312931346112).

159667128720 is an abundant number, since it is smaller than the sum of its proper divisors (466195563504).

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

159667128720 is a wasteful number, since it uses less digits than its factorization.

159667128720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653 (or 638 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 54.

The spelling of 159667128720 in words is "one hundred fifty-nine billion, six hundred sixty-seven million, one hundred twenty-eight thousand, seven hundred twenty".