655191634 has 16 divisors (see below), whose sum is σ = 1041912576. Its totient is φ = 308458800.

The previous prime is 655191631. The next prime is 655191673. The reversal of 655191634 is 436191556.

It is a happy number.

655191634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (655191631) 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, 140512 + ... + 145099.

It is an arithmetic number, because the mean of its divisors is an integer number (65119536).

Almost surely, 2^655191634 is an apocalyptic number.

655191634 is a deficient number, since it is larger than the sum of its proper divisors (386720942).

655191634 is a wasteful number, since it uses less digits than its factorization.

655191634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285681.

The product of its digits is 97200, while the sum is 40.

The square root of 655191634 is about 25596.7113903329. The cubic root of 655191634 is about 868.5392468841.

The spelling of 655191634 in words is "six hundred fifty-five million, one hundred ninety-one thousand, six hundred thirty-four".