191660048 has 40 divisors (see below), whose sum is σ = 379172160. Its totient is φ = 93824640.

The previous prime is 191660047. The next prime is 191660093. The reversal of 191660048 is 840066191.

It is not an unprimeable number, because it can be changed into a prime (191660047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350111 + ... + 350657.

It is an arithmetic number, because the mean of its divisors is an integer number (9479304).

Almost surely, 2^191660048 is an apocalyptic number.

It is an amenable number.

191660048 is a deficient number, since it is larger than the sum of its proper divisors (187512112).

191660048 is a wasteful number, since it uses less digits than its factorization.

191660048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975 (or 969 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 191660048 is about 13844.1340646499. The cubic root of 191660048 is about 576.5591439003.

The spelling of 191660048 in words is "one hundred ninety-one million, six hundred sixty thousand, forty-eight".