125321766000 has 80 divisors (see below), whose sum is σ = 404037392928. Its totient is φ = 33419136000.

The previous prime is 125321765981. The next prime is 125321766023. The reversal of 125321766000 is 667123521.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10437481 + ... + 10449480.

Almost surely, 2^125321766000 is an apocalyptic number.

125321766000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125321766000 is an abundant number, since it is smaller than the sum of its proper divisors (278715626928).

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

125321766000 is a wasteful number, since it uses less digits than its factorization.

125321766000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20886987 (or 20886971 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

Adding to 125321766000 its reverse (667123521), we get a palindrome (125988889521).

The spelling of 125321766000 in words is "one hundred twenty-five billion, three hundred twenty-one million, seven hundred sixty-six thousand".