616504015415640 has 64 divisors (see below), whose sum is σ = 2017649505000960. Its totient is φ = 149455518888320.

The previous prime is 616504015415591. The next prime is 616504015415653. The reversal of 616504015415640 is 46514510405616.

It is a self number, because there is not a number n which added to its sum of digits gives 616504015415640.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233524246944 + ... + 233524249583.

It is an arithmetic number, because the mean of its divisors is an integer number (31525773515640).

Almost surely, 2^{616504015415640} is an apocalyptic number.

616504015415640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

616504015415640 is an abundant number, since it is smaller than the sum of its proper divisors (1401145489585320).

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

616504015415640 is a wasteful number, since it uses less digits than its factorization.

616504015415640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467048496552 (or 467048496548 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 48.

The spelling of 616504015415640 in words is "six hundred sixteen trillion, five hundred four billion, fifteen million, four hundred fifteen thousand, six hundred forty".