61000665107055 has 64 divisors (see below), whose sum is σ = 101862731174400. Its totient is φ = 31142806193664.

The previous prime is 61000665107029. The next prime is 61000665107059. The reversal of 61000665107055 is 55070156600016.

It is not a de Polignac number, because 61000665107055 - 2¹⁵ = 61000665074287 is a prime.

It is a super-2 number, since 2×61000665107055² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61000665106998 and 61000665107016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61000665107059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28607296 + ... + 30665594.

It is an arithmetic number, because the mean of its divisors is an integer number (1591605174600).

Almost surely, 2^{61000665107055} is an apocalyptic number.

61000665107055 is a deficient number, since it is larger than the sum of its proper divisors (40862066067345).

61000665107055 is a wasteful number, since it uses less digits than its factorization.

61000665107055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2059208.

The product of its (nonzero) digits is 189000, while the sum is 42.

The spelling of 61000665107055 in words is "sixty-one trillion, six hundred sixty-five million, one hundred seven thousand, fifty-five".