125436212943552 has 448 divisors, whose sum is σ = 435310814822400. Its totient is φ = 34660750279680.

The previous prime is 125436212943523. The next prime is 125436212943553. The reversal of 125436212943552 is 255349212634521.

125436212943552 is a `hidden beast` number, since 1 + 2 + 5 + 4 + 3 + 6 + 21 + 29 + 43 + 552 = 666.

It is a tau number, because it is divible by the number of its divisors (448).

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 (125436212943553) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 593481349 + ... + 593692667.

Almost surely, 2^{125436212943552} is an apocalyptic number.

125436212943552 is a gapful number since it is divisible by the number (12) 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 125436212943552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217655407411200).

125436212943552 is an abundant number, since it is smaller than the sum of its proper divisors (309874601878848).

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

125436212943552 is a wasteful number, since it uses less digits than its factorization.

125436212943552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212961 (or 212945 counting only the distinct ones).

The product of its digits is 15552000, while the sum is 54.

The spelling of 125436212943552 in words is "one hundred twenty-five trillion, four hundred thirty-six billion, two hundred twelve million, nine hundred forty-three thousand, five hundred fifty-two".