61302112161 has 8 divisors (see below), whose sum is σ = 81783594720. Its totient is φ = 40844352192.

The previous prime is 61302112133. The next prime is 61302112163. The reversal of 61302112161 is 16121120316.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 61302112161 - 2⁷ = 61302112033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61302112163) 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, 5924616 + ... + 5934953.

It is an arithmetic number, because the mean of its divisors is an integer number (10222949340).

Almost surely, 2^61302112161 is an apocalyptic number.

It is an amenable number.

61302112161 is a deficient number, since it is larger than the sum of its proper divisors (20481482559).

61302112161 is a wasteful number, since it uses less digits than its factorization.

61302112161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11861295.

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 61302112161 its reverse (16121120316), we get a palindrome (77423232477).

The spelling of 61302112161 in words is "sixty-one billion, three hundred two million, one hundred twelve thousand, one hundred sixty-one".