78096564550 has 24 divisors (see below), whose sum is σ = 147640920912. Its totient is φ = 30726516000.

The previous prime is 78096564547. The next prime is 78096564563. The reversal of 78096564550 is 5546569087.

It is a junction number, because it is equal to n+sod(n) for n = 78096564491 and 78096564500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12799666 + ... + 12805765.

It is an arithmetic number, because the mean of its divisors is an integer number (6151705038).

Almost surely, 2^78096564550 is an apocalyptic number.

78096564550 is a deficient number, since it is larger than the sum of its proper divisors (69544356362).

78096564550 is a wasteful number, since it uses less digits than its factorization.

78096564550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25605504 (or 25605499 counting only the distinct ones).

The product of its (nonzero) digits is 9072000, while the sum is 55.

The spelling of 78096564550 in words is "seventy-eight billion, ninety-six million, five hundred sixty-four thousand, five hundred fifty".