66016542562113 has 64 divisors (see below), whose sum is σ = 105412746055680. Its totient is φ = 36222906585600.

The previous prime is 66016542562099. The next prime is 66016542562123. The reversal of 66016542562113 is 31126524561066.

It is a happy number.

It is not a de Polignac number, because 66016542562113 - 2⁶ = 66016542562049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66016542562123) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 282553 + ... + 11494038.

It is an arithmetic number, because the mean of its divisors is an integer number (1647074157120).

Almost surely, 2^{66016542562113} is an apocalyptic number.

It is an amenable number.

66016542562113 is a deficient number, since it is larger than the sum of its proper divisors (39396203493567).

66016542562113 is a wasteful number, since it uses less digits than its factorization.

66016542562113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11776870.

The product of its (nonzero) digits is 1555200, while the sum is 48.

The spelling of 66016542562113 in words is "sixty-six trillion, sixteen billion, five hundred forty-two million, five hundred sixty-two thousand, one hundred thirteen".