159378980436 has 72 divisors (see below), whose sum is σ = 434597403240. Its totient is φ = 48956903424.

The previous prime is 159378980413. The next prime is 159378980437. The reversal of 159378980436 is 634089873951.

159378980436 is a `hidden beast` number, since 1 + 59 + 3 + 78 + 9 + 80 + 436 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 130096836 + 159248883600 = 11406^2 + 399060^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159378980437) 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, 9621 + ... + 564668.

It is an arithmetic number, because the mean of its divisors is an integer number (6036075045).

Almost surely, 2^159378980436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 159378980436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217298701620).

159378980436 is an abundant number, since it is smaller than the sum of its proper divisors (275218422804).

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

159378980436 is a wasteful number, since it uses less digits than its factorization.

159378980436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574905 (or 574900 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 63.

The spelling of 159378980436 in words is "one hundred fifty-nine billion, three hundred seventy-eight million, nine hundred eighty thousand, four hundred thirty-six".