66126265604004 has 48 divisors (see below), whose sum is σ = 154368203322816. Its totient is φ = 22031577638400.

The previous prime is 66126265603949. The next prime is 66126265604017. The reversal of 66126265604004 is 40040656262166.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 622505104 + ... + 622611320.

It is an arithmetic number, because the mean of its divisors is an integer number (3216004235892).

Almost surely, 2^{66126265604004} is an apocalyptic number.

It is an amenable number.

66126265604004 is an abundant number, since it is smaller than the sum of its proper divisors (88241937718812).

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

66126265604004 is a wasteful number, since it uses less digits than its factorization.

66126265604004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130476 (or 130474 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 48.

The spelling of 66126265604004 in words is "sixty-six trillion, one hundred twenty-six billion, two hundred sixty-five million, six hundred four thousand, four".