61000665105601 has 8 divisors (see below), whose sum is σ = 65762393586624. Its totient is φ = 56248846571280.

The previous prime is 61000665105563. The next prime is 61000665105629. The reversal of 61000665105601 is 10650156600016.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61000665105601 - 2²⁷ = 61000530887873 is a prime.

It is a super-2 number, since 2×61000665105601² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61000665105701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2477473885 + ... + 2477498506.

It is an arithmetic number, because the mean of its divisors is an integer number (8220299198328).

Almost surely, 2^{61000665105601} is an apocalyptic number.

It is an amenable number.

61000665105601 is a deficient number, since it is larger than the sum of its proper divisors (4761728481023).

61000665105601 is a wasteful number, since it uses less digits than its factorization.

61000665105601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4954973351.

The product of its (nonzero) digits is 32400, while the sum is 37.

The spelling of 61000665105601 in words is "sixty-one trillion, six hundred sixty-five million, one hundred five thousand, six hundred one".