125555489046 has 320 divisors, whose sum is σ = 332221317120. Its totient is φ = 35095576320.

The previous prime is 125555488967. The next prime is 125555489069. The reversal of 125555489046 is 640984555521.

125555489046 is a `hidden beast` number, since 1 + 2 + 5 + 5 + 5 + 548 + 90 + 4 + 6 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 125555488983 and 125555489001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 157534720 + ... + 157535516.

It is an arithmetic number, because the mean of its divisors is an integer number (1038191616).

Almost surely, 2^125555489046 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125555489046, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166110658560).

125555489046 is an abundant number, since it is smaller than the sum of its proper divisors (206665828074).

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

125555489046 is a wasteful number, since it uses less digits than its factorization.

125555489046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001 (or 992 counting only the distinct ones).

The product of its (nonzero) digits is 8640000, while the sum is 54.

The spelling of 125555489046 in words is "one hundred twenty-five billion, five hundred fifty-five million, four hundred eighty-nine thousand, forty-six".