61005566141 has 8 divisors (see below), whose sum is σ = 65706676224. Its totient is φ = 56305652400.

The previous prime is 61005566123. The next prime is 61005566231. The reversal of 61005566141 is 14166550016.

61005566141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 61005566141 - 2¹⁴ = 61005549757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61005563141) 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, 191741 + ... + 398466.

It is an arithmetic number, because the mean of its divisors is an integer number (8213334528).

Almost surely, 2^61005566141 is an apocalyptic number.

It is an amenable number.

61005566141 is a deficient number, since it is larger than the sum of its proper divisors (4701110083).

61005566141 is a wasteful number, since it uses less digits than its factorization.

61005566141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598171.

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 61005566141 in words is "sixty-one billion, five million, five hundred sixty-six thousand, one hundred forty-one".