190240657505 has 8 divisors (see below), whose sum is σ = 238214388672. Its totient is φ = 145575459568.

The previous prime is 190240657501. The next prime is 190240657513. The reversal of 190240657505 is 505756042091.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 190240657505 - 2² = 190240657501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190240657501) 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, 827133179 + ... + 827133408.

It is an arithmetic number, because the mean of its divisors is an integer number (29776798584).

Almost surely, 2^190240657505 is an apocalyptic number.

It is an amenable number.

190240657505 is a deficient number, since it is larger than the sum of its proper divisors (47973731167).

190240657505 is a wasteful number, since it uses less digits than its factorization.

190240657505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1654266615.

The product of its (nonzero) digits is 378000, while the sum is 44.

Adding to 190240657505 its reverse (505756042091), we get a palindrome (695996699596).

The spelling of 190240657505 in words is "one hundred ninety billion, two hundred forty million, six hundred fifty-seven thousand, five hundred five".