6101666661005 has 32 divisors (see below), whose sum is σ = 7513810698240. Its totient is φ = 4754477531200.

The previous prime is 6101666660959. The next prime is 6101666661007. The reversal of 6101666661005 is 5001666661016.

It is a de Polignac number, because none of the positive numbers 2^k-6101666661005 is a prime.

It is a super-2 number, since 2×6101666661005² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6101666661007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137554580 + ... + 137598930.

It is an arithmetic number, because the mean of its divisors is an integer number (234806584320).

Almost surely, 2^{6101666661005} is an apocalyptic number.

It is an amenable number.

6101666661005 is a deficient number, since it is larger than the sum of its proper divisors (1412144037235).

6101666661005 is a wasteful number, since it uses less digits than its factorization.

6101666661005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47209.

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 6101666661005 in words is "six trillion, one hundred one billion, six hundred sixty-six million, six hundred sixty-one thousand, five".