61116172 has 24 divisors (see below), whose sum is σ = 115623536. Its totient is φ = 28099008.

The previous prime is 61116169. The next prime is 61116233. The reversal of 61116172 is 27161116.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12283 + ... + 16525.

Almost surely, 2^61116172 is an apocalyptic number.

It is an amenable number.

61116172 is a deficient number, since it is larger than the sum of its proper divisors (54507364).

61116172 is a wasteful number, since it uses less digits than its factorization.

61116172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4537 (or 4535 counting only the distinct ones).

The product of its digits is 504, while the sum is 25.

The square root of 61116172 is about 7817.6832885453. The cubic root of 61116172 is about 393.8994564237.

Adding to 61116172 its reverse (27161116), we get a palindrome (88277288).

The spelling of 61116172 in words is "sixty-one million, one hundred sixteen thousand, one hundred seventy-two".