66265120510426 has 8 divisors (see below), whose sum is σ = 99682487874900. Its totient is φ = 33037624552128.

The previous prime is 66265120510411. The next prime is 66265120510483. The reversal of 66265120510426 is 62401502156266.

It can be written as a sum of positive squares in 2 ways, for example, as 56506025668401 + 9759094842025 = 7517049^2 + 3123955^2 .

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

It is a super-2 number, since 2×66265120510426² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47467850671 + ... + 47467852066.

Almost surely, 2^{66265120510426} is an apocalyptic number.

66265120510426 is a deficient number, since it is larger than the sum of its proper divisors (33417367364474).

66265120510426 is a wasteful number, since it uses less digits than its factorization.

66265120510426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94935703088.

The product of its (nonzero) digits is 1036800, while the sum is 46.

The spelling of 66265120510426 in words is "sixty-six trillion, two hundred sixty-five billion, one hundred twenty million, five hundred ten thousand, four hundred twenty-six".