15455782980000 has 720 divisors, whose sum is σ = 59961581551872. Its totient is φ = 3744000000000.

The previous prime is 15455782979971. The next prime is 15455782980007. The reversal of 15455782980000 is 8928755451.

15455782980000 is a `hidden beast` number, since 1 + 5 + 4 + 557 + 8 + 2 + 9 + 80 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

It is not an unprimeable number, because it can be changed into a prime (15455782980007) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 3862978000 + ... + 3862982000.

Almost surely, 2^{15455782980000} is an apocalyptic number.

15455782980000 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 15455782980000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29980790775936).

15455782980000 is an abundant number, since it is smaller than the sum of its proper divisors (44505798571872).

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

15455782980000 is a wasteful number, since it uses less digits than its factorization.

15455782980000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5999 (or 5973 counting only the distinct ones).

The product of its (nonzero) digits is 4032000, while the sum is 54.

The spelling of 15455782980000 in words is "fifteen trillion, four hundred fifty-five billion, seven hundred eighty-two million, nine hundred eighty thousand".