61606650354081 has 16 divisors (see below), whose sum is σ = 97113931593600. Its totient is φ = 33989876057088.

The previous prime is 61606650354059. The next prime is 61606650354163. The reversal of 61606650354081 is 18045305660616.

It is not a de Polignac number, because 61606650354081 - 2⁹ = 61606650353569 is a prime.

It is a super-2 number, since 2×61606650354081² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61606654354081) 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, 50580172096 + ... + 50580173313.

It is an arithmetic number, because the mean of its divisors is an integer number (6069620724600).

Almost surely, 2^{61606650354081} is an apocalyptic number.

It is an amenable number.

61606650354081 is a deficient number, since it is larger than the sum of its proper divisors (35507281239519).

61606650354081 is a wasteful number, since it uses less digits than its factorization.

61606650354081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101160345448.

The product of its (nonzero) digits is 3110400, while the sum is 51.

The spelling of 61606650354081 in words is "sixty-one trillion, six hundred six billion, six hundred fifty million, three hundred fifty-four thousand, eighty-one".