75666346222656 has 112 divisors (see below), whose sum is σ = 228810573461504. Its totient is φ = 21618015422976.

The previous prime is 75666346222651. The next prime is 75666346222673. The reversal of 75666346222656 is 65622264366657.

It is a tau number, because it is divible by the number of its divisors (112).

It is not an unprimeable number, because it can be changed into a prime (75666346222651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29971641 + ... + 32398023.

Almost surely, 2^{75666346222656} is an apocalyptic number.

It is an amenable number.

75666346222656 is an abundant number, since it is smaller than the sum of its proper divisors (153144227238848).

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

75666346222656 is a wasteful number, since it uses less digits than its factorization.

75666346222656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2449608 (or 2449598 counting only the distinct ones).

The product of its digits is 783820800, while the sum is 66.

The spelling of 75666346222656 in words is "seventy-five trillion, six hundred sixty-six billion, three hundred forty-six million, two hundred twenty-two thousand, six hundred fifty-six".