66260504415256 has 32 divisors (see below), whose sum is σ = 130838053892400. Its totient is φ = 31371976512000.

The previous prime is 66260504415221. The next prime is 66260504415257. The reversal of 66260504415256 is 65251440506266.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66260504415257) 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, 100909245 + ... + 101563756.

Almost surely, 2^{66260504415256} is an apocalyptic number.

It is an amenable number.

66260504415256 is a deficient number, since it is larger than the sum of its proper divisors (64577549477144).

66260504415256 is a wasteful number, since it uses less digits than its factorization.

66260504415256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202475179 (or 202475175 counting only the distinct ones).

The product of its (nonzero) digits is 10368000, while the sum is 52.

The spelling of 66260504415256 in words is "sixty-six trillion, two hundred sixty billion, five hundred four million, four hundred fifteen thousand, two hundred fifty-six".