160647289920 has 252 divisors, whose sum is σ = 598335733476. Its totient is φ = 39543828480.

The previous prime is 160647289889. The next prime is 160647289949. The reversal of 160647289920 is 29982746061.

160647289920 is a `hidden beast` number, since 1 + 6 + 0 + 6 + 472 + 89 + 92 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 81690785856 + 78956504064 = 285816^2 + 280992^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 321690 + ... + 651750.

Almost surely, 2^160647289920 is an apocalyptic number.

160647289920 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 160647289920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299167866738).

160647289920 is an abundant number, since it is smaller than the sum of its proper divisors (437688443556).

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

160647289920 is a wasteful number, since it uses less digits than its factorization.

160647289920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330110 (or 330084 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 160647289920 in words is "one hundred sixty billion, six hundred forty-seven million, two hundred eighty-nine thousand, nine hundred twenty".