61172025167005 has 8 divisors (see below), whose sum is σ = 74609814302424. Its totient is φ = 48135364065600.

The previous prime is 61172025166999. The next prime is 61172025167009. The reversal of 61172025167005 is 50076152027116.

It can be written as a sum of positive squares in 4 ways, for example, as 7580225874841 + 53591799292164 = 2753221^2 + 7320642^2 .

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

It is not a de Polignac number, because 61172025167005 - 2⁴⁵ = 25987653078173 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 (61172025167009) 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, 100282008166 + ... + 100282008775.

It is an arithmetic number, because the mean of its divisors is an integer number (9326226787803).

Almost surely, 2^{61172025167005} is an apocalyptic number.

It is an amenable number.

61172025167005 is a deficient number, since it is larger than the sum of its proper divisors (13437789135419).

61172025167005 is a wasteful number, since it uses less digits than its factorization.

61172025167005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200564017007.

The product of its (nonzero) digits is 176400, while the sum is 43.

The spelling of 61172025167005 in words is "sixty-one trillion, one hundred seventy-two billion, twenty-five million, one hundred sixty-seven thousand, five".