199546940825 has 48 divisors (see below), whose sum is σ = 253972649472. Its totient is φ = 155481120000.

The previous prime is 199546940819. The next prime is 199546940839. The reversal of 199546940825 is 528049645991.

It is not a de Polignac number, because 199546940825 - 2⁸ = 199546940569 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 71495180 + ... + 71497970.

It is an arithmetic number, because the mean of its divisors is an integer number (5291096864).

Almost surely, 2^199546940825 is an apocalyptic number.

It is an amenable number.

199546940825 is a deficient number, since it is larger than the sum of its proper divisors (54425708647).

199546940825 is a wasteful number, since it uses less digits than its factorization.

199546940825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3306 (or 3301 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 62.

The spelling of 199546940825 in words is "one hundred ninety-nine billion, five hundred forty-six million, nine hundred forty thousand, eight hundred twenty-five".