2601780446061 has 32 divisors (see below), whose sum is σ = 3859729758720. Its totient is φ = 1732163553792.

The previous prime is 2601780446053. The next prime is 2601780446087. The reversal of 2601780446061 is 1606440871062.

2601780446061 is a `hidden beast` number, since 2 + 60 + 1 + 78 + 0 + 4 + 460 + 61 = 666.

2601780446061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2601780446061 - 2³ = 2601780446053 is a prime.

It is a super-2 number, since 2×2601780446061² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2601780445998 and 2601780446016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2601780446051) 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, 77157541 + ... + 77191253.

It is an arithmetic number, because the mean of its divisors is an integer number (120616554960).

Almost surely, 2^{2601780446061} is an apocalyptic number.

It is an amenable number.

2601780446061 is a deficient number, since it is larger than the sum of its proper divisors (1257949312659).

2601780446061 is a wasteful number, since it uses less digits than its factorization.

2601780446061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37522 (or 37516 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 2601780446061 in words is "two trillion, six hundred one billion, seven hundred eighty million, four hundred forty-six thousand, sixty-one".