1966903125 has 48 divisors (see below), whose sum is σ = 3576146112. Its totient is φ = 953600000.

The previous prime is 1966903117. The next prime is 1966903139. The reversal of 1966903125 is 5213096691.

It is not a de Polignac number, because 1966903125 - 2³ = 1966903117 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 93589 + ... + 112661.

It is an arithmetic number, because the mean of its divisors is an integer number (74503044).

Almost surely, 2^1966903125 is an apocalyptic number.

1966903125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1966903125 is a deficient number, since it is larger than the sum of its proper divisors (1609242987).

1966903125 is an equidigital number, since it uses as much as digits as its factorization.

1966903125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19112 (or 19092 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 42.

The square root of 1966903125 is about 44349.7815665421. The cubic root of 1966903125 is about 1252.9324485501.

The spelling of 1966903125 in words is "one billion, nine hundred sixty-six million, nine hundred three thousand, one hundred twenty-five".