616423137446 has 4 divisors (see below), whose sum is σ = 924634706172. Its totient is φ = 308211568722.

The previous prime is 616423137439. The next prime is 616423137457. The reversal of 616423137446 is 644731324616.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 616423137446.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 154105784360 + ... + 154105784363.

It is an arithmetic number, because the mean of its divisors is an integer number (231158676543).

Almost surely, 2^616423137446 is an apocalyptic number.

616423137446 is a deficient number, since it is larger than the sum of its proper divisors (308211568726).

616423137446 is a wasteful number, since it uses less digits than its factorization.

616423137446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308211568725.

The product of its digits is 1741824, while the sum is 47.

The spelling of 616423137446 in words is "six hundred sixteen billion, four hundred twenty-three million, one hundred thirty-seven thousand, four hundred forty-six".