616545406104 has 32 divisors (see below), whose sum is σ = 1622487912000. Its totient is φ = 194698549152.

The previous prime is 616545406073. The next prime is 616545406121. The reversal of 616545406104 is 401604545616.

It is a happy number.

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 in 7 ways as a sum of consecutive naturals, for example, 676036174 + ... + 676037085.

It is an arithmetic number, because the mean of its divisors is an integer number (50702747250).

Almost surely, 2^616545406104 is an apocalyptic number.

It is an amenable number.

616545406104 is an abundant number, since it is smaller than the sum of its proper divisors (1005942505896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

616545406104 is a wasteful number, since it uses less digits than its factorization.

616545406104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352073287 (or 1352073283 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The spelling of 616545406104 in words is "six hundred sixteen billion, five hundred forty-five million, four hundred six thousand, one hundred four".