61115111002 has 24 divisors (see below), whose sum is σ = 101044994400. Its totient is φ = 27702176040.

The previous prime is 61115110963. The next prime is 61115111051. The reversal of 61115111002 is 20011151116.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 264852 + ... + 438607.

It is an arithmetic number, because the mean of its divisors is an integer number (4210208100).

Almost surely, 2^61115111002 is an apocalyptic number.

61115111002 is a deficient number, since it is larger than the sum of its proper divisors (39929883398).

61115111002 is a wasteful number, since it uses less digits than its factorization.

61115111002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703842 (or 703831 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 19.

Adding to 61115111002 its reverse (20011151116), we get a palindrome (81126262118).

The spelling of 61115111002 in words is "sixty-one billion, one hundred fifteen million, one hundred eleven thousand, two".