12959545536 has 896 divisors, whose sum is σ = 50562662400. Its totient is φ = 3165143040.

The previous prime is 12959545483. The next prime is 12959545537. The reversal of 12959545536 is 63554595921.

12959545536 is a `hidden beast` number, since 1 + 2 + 9 + 59 + 54 + 5 + 536 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (12959545537) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 121117195 + ... + 121117301.

Almost surely, 2^12959545536 is an apocalyptic number.

12959545536 is a gapful number since it is divisible by the number (16) 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 12959545536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25281331200).

12959545536 is an abundant number, since it is smaller than the sum of its proper divisors (37603116864).

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

12959545536 is a wasteful number, since it uses less digits than its factorization.

12959545536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202 (or 186 counting only the distinct ones).

The product of its digits is 7290000, while the sum is 54.

The spelling of 12959545536 in words is "twelve billion, nine hundred fifty-nine million, five hundred forty-five thousand, five hundred thirty-six".