69670155328225 has 27 divisors (see below), whose sum is σ = 87377242874187. Its totient is φ = 55106937578880.

The previous prime is 69670155328211. The next prime is 69670155328243. The reversal of 69670155328225 is 52282355107696.

The square root of 69670155328225 is 8346865.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 58496538779809 + 11173616548416 = 7648303^2 + 3342696^2 .

It is not a de Polignac number, because 69670155328225 - 2²¹ = 69670153231073 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3714345547 + ... + 3714364303.

Almost surely, 2^{69670155328225} is an apocalyptic number.

69670155328225 is the 8346865-th square number.

69670155328225 is the 4173433-rd centered octagonal number.

It is an amenable number.

69670155328225 is a deficient number, since it is larger than the sum of its proper divisors (17707087545962).

69670155328225 is an frugal number, since it uses more digits than its factorization.

69670155328225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37702 (or 18851 counting only the distinct ones).

The product of its (nonzero) digits is 54432000, while the sum is 61.

The spelling of 69670155328225 in words is "sixty-nine trillion, six hundred seventy billion, one hundred fifty-five million, three hundred twenty-eight thousand, two hundred twenty-five".