706720555121 has 8 divisors (see below), whose sum is σ = 826463905344. Its totient is φ = 591673022640.

The previous prime is 706720555117. The next prime is 706720555181. The reversal of 706720555121 is 121555027607.

It is a happy number.

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

It is not a de Polignac number, because 706720555121 - 2² = 706720555117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (706720555181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1173954110 + ... + 1173954711.

It is an arithmetic number, because the mean of its divisors is an integer number (103307988168).

Almost surely, 2^706720555121 is an apocalyptic number.

It is an amenable number.

706720555121 is a deficient number, since it is larger than the sum of its proper divisors (119743350223).

706720555121 is a wasteful number, since it uses less digits than its factorization.

706720555121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2347908871.

The product of its (nonzero) digits is 147000, while the sum is 41.

The spelling of 706720555121 in words is "seven hundred six billion, seven hundred twenty million, five hundred fifty-five thousand, one hundred twenty-one".