12551132943360 has 3520 divisors, whose sum is σ = 54452270974464. Its totient is φ = 2732772556800.

The previous prime is 12551132943281. The next prime is 12551132943361. The reversal of 12551132943360 is 6334923115521.

12551132943360 is a `hidden beast` number, since 1 + 2 + 5 + 511 + 32 + 9 + 43 + 3 + 60 = 666.

It is a tau number, because it is divible by the number of its divisors (3520).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12551132943361) by changing a digit.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 205756277730 + ... + 205756277790.

Almost surely, 2^{12551132943360} is an apocalyptic number.

12551132943360 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 12551132943360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27226135487232).

12551132943360 is an abundant number, since it is smaller than the sum of its proper divisors (41901138031104).

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

12551132943360 is a wasteful number, since it uses less digits than its factorization.

12551132943360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 195 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 45.

The spelling of 12551132943360 in words is "twelve trillion, five hundred fifty-one billion, one hundred thirty-two million, nine hundred forty-three thousand, three hundred sixty".