61172401163 has 8 divisors (see below), whose sum is σ = 65236757040. Its totient is φ = 57159820800.

The previous prime is 61172401141. The next prime is 61172401193. The reversal of 61172401163 is 36110427116.

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

It is not a de Polignac number, because 61172401163 - 2⁸ = 61172400907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61172401133) 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, 12941438 + ... + 12946163.

It is an arithmetic number, because the mean of its divisors is an integer number (8154594630).

Almost surely, 2^61172401163 is an apocalyptic number.

61172401163 is a deficient number, since it is larger than the sum of its proper divisors (4064355877).

61172401163 is a wasteful number, since it uses less digits than its factorization.

61172401163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25887757.

The product of its (nonzero) digits is 6048, while the sum is 32.

Adding to 61172401163 its reverse (36110427116), we get a palindrome (97282828279).

The spelling of 61172401163 in words is "sixty-one billion, one hundred seventy-two million, four hundred one thousand, one hundred sixty-three".