125366161650 has 48 divisors (see below), whose sum is σ = 310929590304. Its totient is φ = 33428663680.

The previous prime is 125366161607. The next prime is 125366161651. The reversal of 125366161650 is 56161663521.

It is not an unprimeable number, because it can be changed into a prime (125366161651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4304437 + ... + 4333463.

It is an arithmetic number, because the mean of its divisors is an integer number (6477699798).

Almost surely, 2^125366161650 is an apocalyptic number.

125366161650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125366161650 is an abundant number, since it is smaller than the sum of its proper divisors (185563428654).

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

125366161650 is a wasteful number, since it uses less digits than its factorization.

125366161650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57835 (or 57830 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 42.

The spelling of 125366161650 in words is "one hundred twenty-five billion, three hundred sixty-six million, one hundred sixty-one thousand, six hundred fifty".