77735000161 has 32 divisors (see below), whose sum is σ = 98272355328. Its totient is φ = 59856287040.

The previous prime is 77735000141. The next prime is 77735000177. The reversal of 77735000161 is 16100053777.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 77735000161 - 2⁷ = 77735000033 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77735000161.

It is not an unprimeable number, because it can be changed into a prime (77735000141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 429246 + ... + 582856.

It is an arithmetic number, because the mean of its divisors is an integer number (3071011104).

Almost surely, 2^77735000161 is an apocalyptic number.

It is an amenable number.

77735000161 is a deficient number, since it is larger than the sum of its proper divisors (20537355167).

77735000161 is a wasteful number, since it uses less digits than its factorization.

77735000161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153781.

The product of its (nonzero) digits is 30870, while the sum is 37.

The spelling of 77735000161 in words is "seventy-seven billion, seven hundred thirty-five million, one hundred sixty-one", and thus it is an aban number.