61167677029 has 2 divisors, whose sum is σ = 61167677030. Its totient is φ = 61167677028.

The previous prime is 61167677009. The next prime is 61167677071. The reversal of 61167677029 is 92077676116.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54014408100 + 7153268929 = 232410^2 + 84577^2 .

It is a cyclic number.

It is not a de Polignac number, because 61167677029 - 2¹⁹ = 61167152741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61167677009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30583838514 + 30583838515.

It is an arithmetic number, because the mean of its divisors is an integer number (30583838515).

Almost surely, 2^61167677029 is an apocalyptic number.

It is an amenable number.

61167677029 is a deficient number, since it is larger than the sum of its proper divisors (1).

61167677029 is an equidigital number, since it uses as much as digits as its factorization.

61167677029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1333584, while the sum is 52.

The spelling of 61167677029 in words is "sixty-one billion, one hundred sixty-seven million, six hundred seventy-seven thousand, twenty-nine".