61115650029 has 24 divisors (see below), whose sum is σ = 106823995200. Its totient is φ = 32868920448.

The previous prime is 61115649943. The next prime is 61115650031. The reversal of 61115650029 is 92005651116.

61115650029 is a `hidden beast` number, since 61 + 11 + 565 + 0 + 0 + 29 = 666.

It is not a de Polignac number, because 61115650029 - 2⁷ = 61115649901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61115649975 and 61115650002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61115650129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28530979 + ... + 28533120.

It is an arithmetic number, because the mean of its divisors is an integer number (4450999800).

Almost surely, 2^61115650029 is an apocalyptic number.

It is an amenable number.

61115650029 is a deficient number, since it is larger than the sum of its proper divisors (45708345171).

61115650029 is a wasteful number, since it uses less digits than its factorization.

61115650029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57064129 (or 57064126 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 36.

The spelling of 61115650029 in words is "sixty-one billion, one hundred fifteen million, six hundred fifty thousand, twenty-nine".