12903556055040 has 1408 divisors, whose sum is σ = 55662762885120. Its totient is φ = 2768643293184.

The previous prime is 12903556055021. The next prime is 12903556055077. The reversal of 12903556055040 is 4055065530921.

12903556055040 is a `hidden beast` number, since 1 + 2 + 9 + 0 + 3 + 5 + 56 + 0 + 550 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 33690746689 + ... + 33690747071.

Almost surely, 2^{12903556055040} is an apocalyptic number.

12903556055040 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 12903556055040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27831381442560).

12903556055040 is an abundant number, since it is smaller than the sum of its proper divisors (42759206830080).

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

12903556055040 is an frugal number, since it uses more digits than its factorization.

12903556055040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463 (or 417 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 45.

The spelling of 12903556055040 in words is "twelve trillion, nine hundred three billion, five hundred fifty-six million, fifty-five thousand, forty".