61115111048 has 32 divisors (see below), whose sum is σ = 121048240800. Its totient is φ = 28846948608.

The previous prime is 61115110963. The next prime is 61115111051. The reversal of 61115111048 is 84011151116.

It is a self number, because there is not a number n which added to its sum of digits gives 61115111048.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 667361 + ... + 753392.

It is an arithmetic number, because the mean of its divisors is an integer number (3782757525).

Almost surely, 2^61115111048 is an apocalyptic number.

It is an amenable number.

61115111048 is a deficient number, since it is larger than the sum of its proper divisors (59933129752).

61115111048 is a wasteful number, since it uses less digits than its factorization.

61115111048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421061 (or 1421057 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 29.

The spelling of 61115111048 in words is "sixty-one billion, one hundred fifteen million, one hundred eleven thousand, forty-eight".