66061015111005 has 16 divisors (see below), whose sum is σ = 106529888937984. Its totient is φ = 34955119805760.

The previous prime is 66061015110977. The next prime is 66061015111027. The reversal of 66061015111005 is 50011151016066.

It is not a de Polignac number, because 66061015111005 - 2⁵ = 66061015110973 is a prime.

It is a super-2 number, since 2×66061015111005² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

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, 17338847206 + ... + 17338851015.

It is an arithmetic number, because the mean of its divisors is an integer number (6658118058624).

Almost surely, 2^{66061015111005} is an apocalyptic number.

It is an amenable number.

66061015111005 is a deficient number, since it is larger than the sum of its proper divisors (40468873826979).

66061015111005 is a wasteful number, since it uses less digits than its factorization.

66061015111005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34677698356.

The product of its (nonzero) digits is 5400, while the sum is 33.

The spelling of 66061015111005 in words is "sixty-six trillion, sixty-one billion, fifteen million, one hundred eleven thousand, five".