125412216650 has 48 divisors (see below), whose sum is σ = 269338969536. Its totient is φ = 42555179520.

The previous prime is 125412216649. The next prime is 125412216691. The reversal of 125412216650 is 56612214521.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 125412216650.

It is an unprimeable number.

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, 1813064 + ... + 1880963.

It is an arithmetic number, because the mean of its divisors is an integer number (5611228532).

Almost surely, 2^125412216650 is an apocalyptic number.

125412216650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125412216650 is an abundant number, since it is smaller than the sum of its proper divisors (143926752886).

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

125412216650 is a wasteful number, since it uses less digits than its factorization.

125412216650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3694143 (or 3694138 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 35.

The spelling of 125412216650 in words is "one hundred twenty-five billion, four hundred twelve million, two hundred sixteen thousand, six hundred fifty".