716556138 has 8 divisors (see below), whose sum is σ = 1433112288. Its totient is φ = 238852044.

The previous prime is 716556109. The next prime is 716556151. The reversal of 716556138 is 831655617.

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

716556138 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 716556138.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59713006 + ... + 59713017.

It is an arithmetic number, because the mean of its divisors is an integer number (179139036).

Almost surely, 2^716556138 is an apocalyptic number.

716556138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

716556138 is a wasteful number, since it uses less digits than its factorization.

716556138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119426028.

The product of its digits is 151200, while the sum is 42.

The square root of 716556138 is about 26768.5662298151. The cubic root of 716556138 is about 894.8496519294.

The spelling of 716556138 in words is "seven hundred sixteen million, five hundred fifty-six thousand, one hundred thirty-eight".