616688471136 has 96 divisors (see below), whose sum is σ = 1664306759808. Its totient is φ = 199830435840.

The previous prime is 616688471117. The next prime is 616688471177. The reversal of 616688471136 is 631174886616.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 517000 + ... + 1225016.

It is an arithmetic number, because the mean of its divisors is an integer number (17336528748).

Almost surely, 2^616688471136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 616688471136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (832153379904).

616688471136 is an abundant number, since it is smaller than the sum of its proper divisors (1047618288672).

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

616688471136 is a wasteful number, since it uses less digits than its factorization.

616688471136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708284 (or 708276 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 57.

The spelling of 616688471136 in words is "six hundred sixteen billion, six hundred eighty-eight million, four hundred seventy-one thousand, one hundred thirty-six".