61880163 has 8 divisors (see below), whose sum is σ = 82746048. Its totient is φ = 41133864.

The previous prime is 61880149. The next prime is 61880167. The reversal of 61880163 is 36108816.

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

It is not a de Polignac number, because 61880163 - 2¹⁸ = 61618019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61880167) 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, 28681 + ... + 30762.

It is an arithmetic number, because the mean of its divisors is an integer number (10343256).

Almost surely, 2^61880163 is an apocalyptic number.

61880163 is a deficient number, since it is larger than the sum of its proper divisors (20865885).

61880163 is a wasteful number, since it uses less digits than its factorization.

61880163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59793.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 61880163 is about 7866.3945362536. The cubic root of 61880163 is about 395.5339954998.

Adding to 61880163 its reverse (36108816), we get a palindrome (97988979).

The spelling of 61880163 in words is "sixty-one million, eight hundred eighty thousand, one hundred sixty-three".