61202166566404 has 48 divisors (see below), whose sum is σ = 110355524697600. Its totient is φ = 29683622900736.

The previous prime is 61202166566287. The next prime is 61202166566407. The reversal of 61202166566404 is 40466566120216.

It is not an unprimeable number, because it can be changed into a prime (61202166566407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 610268737 + ... + 610369015.

It is an arithmetic number, because the mean of its divisors is an integer number (2299073431200).

Almost surely, 2^{61202166566404} is an apocalyptic number.

It is an amenable number.

61202166566404 is a deficient number, since it is larger than the sum of its proper divisors (49153358131196).

61202166566404 is a wasteful number, since it uses less digits than its factorization.

61202166566404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129172 (or 129170 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 49.

The spelling of 61202166566404 in words is "sixty-one trillion, two hundred two billion, one hundred sixty-six million, five hundred sixty-six thousand, four hundred four".