139685299616 has 48 divisors (see below), whose sum is σ = 282645838440. Its totient is φ = 67905008640.

The previous prime is 139685299603. The next prime is 139685299651. The reversal of 139685299616 is 616992586931.

It can be written as a sum of positive squares in 4 ways, for example, as 102822835600 + 36862464016 = 320660^2 + 191996^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1592390 + ... + 1677818.

Almost surely, 2^139685299616 is an apocalyptic number.

139685299616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139685299616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141322919220).

139685299616 is an abundant number, since it is smaller than the sum of its proper divisors (142960538824).

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

139685299616 is a wasteful number, since it uses less digits than its factorization.

139685299616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86857 (or 86849 counting only the distinct ones).

The product of its digits is 37791360, while the sum is 65.

The spelling of 139685299616 in words is "one hundred thirty-nine billion, six hundred eighty-five million, two hundred ninety-nine thousand, six hundred sixteen".