77129103161 has 16 divisors (see below), whose sum is σ = 85836864768. Its totient is φ = 68716252800.

The previous prime is 77129103127. The next prime is 77129103169. The reversal of 77129103161 is 16130192177.

It is a cyclic number.

It is not a de Polignac number, because 77129103161 - 2¹⁴ = 77129086777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77129103169) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 179825 + ... + 431966.

It is an arithmetic number, because the mean of its divisors is an integer number (5364804048).

Almost surely, 2^77129103161 is an apocalyptic number.

It is an amenable number.

77129103161 is a deficient number, since it is larger than the sum of its proper divisors (8707761607).

77129103161 is a wasteful number, since it uses less digits than its factorization.

77129103161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612032.

The product of its (nonzero) digits is 15876, while the sum is 38.

The spelling of 77129103161 in words is "seventy-seven billion, one hundred twenty-nine million, one hundred three thousand, one hundred sixty-one".