159774666240 has 320 divisors, whose sum is σ = 614475671040. Its totient is φ = 34597601280.

The previous prime is 159774666217. The next prime is 159774666281. The reversal of 159774666240 is 42666477951.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 943230 + ... + 1099650.

It is an arithmetic number, because the mean of its divisors is an integer number (1920236472).

Almost surely, 2^159774666240 is an apocalyptic number.

159774666240 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 159774666240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (307237835520).

159774666240 is an abundant number, since it is smaller than the sum of its proper divisors (454701004800).

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

159774666240 is a wasteful number, since it uses less digits than its factorization.

159774666240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156473 (or 156457 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 57.

The spelling of 159774666240 in words is "one hundred fifty-nine billion, seven hundred seventy-four million, six hundred sixty-six thousand, two hundred forty".