61115111017 has 8 divisors (see below), whose sum is σ = 62554464000. Its totient is φ = 59681551104.

The previous prime is 61115110963. The next prime is 61115111051. The reversal of 61115111017 is 71011151116.

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

It is a cyclic number.

It is not a de Polignac number, because 61115111017 - 2¹¹ = 61115108969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 61115110982 and 61115111000.

It is not an unprimeable number, because it can be changed into a prime (61115111077) 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, 1426917 + ... + 1469122.

It is an arithmetic number, because the mean of its divisors is an integer number (7819308000).

Almost surely, 2^61115111017 is an apocalyptic number.

It is an amenable number.

61115111017 is a deficient number, since it is larger than the sum of its proper divisors (1439352983).

61115111017 is a wasteful number, since it uses less digits than its factorization.

61115111017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2896535.

The product of its (nonzero) digits is 210, while the sum is 25.

The spelling of 61115111017 in words is "sixty-one billion, one hundred fifteen million, one hundred eleven thousand, seventeen".