78053800161 has 8 divisors (see below), whose sum is σ = 104074653280. Its totient is φ = 52034406912.

The previous prime is 78053800157. The next prime is 78053800163. The reversal of 78053800161 is 16100835087.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 78053800161 - 2² = 78053800157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78053800163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233440 + ... + 458913.

It is an arithmetic number, because the mean of its divisors is an integer number (13009331660).

Almost surely, 2^78053800161 is an apocalyptic number.

It is an amenable number.

78053800161 is a deficient number, since it is larger than the sum of its proper divisors (26020853119).

78053800161 is a wasteful number, since it uses less digits than its factorization.

78053800161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729935.

The product of its (nonzero) digits is 40320, while the sum is 39.

The spelling of 78053800161 in words is "seventy-eight billion, fifty-three million, eight hundred thousand, one hundred sixty-one".