616366396804 has 6 divisors (see below), whose sum is σ = 1078641194414. Its totient is φ = 308183198400.

The previous prime is 616366396781. The next prime is 616366396813. The reversal of 616366396804 is 408693663616.

It can be written as a sum of positive squares in only one way, i.e., 487986073600 + 128380323204 = 698560^2 + 358302^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77045799597 + ... + 77045799604.

Almost surely, 2^616366396804 is an apocalyptic number.

It is an amenable number.

616366396804 is a deficient number, since it is larger than the sum of its proper divisors (462274797610).

616366396804 is a wasteful number, since it uses less digits than its factorization.

616366396804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154091599205 (or 154091599203 counting only the distinct ones).

The product of its (nonzero) digits is 20155392, while the sum is 58.

The spelling of 616366396804 in words is "six hundred sixteen billion, three hundred sixty-six million, three hundred ninety-six thousand, eight hundred four".