139461207616 has 56 divisors (see below), whose sum is σ = 293354735616. Its totient is φ = 65554360320.

The previous prime is 139461207593. The next prime is 139461207643. The reversal of 139461207616 is 616702164931.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 892801 + ... + 1037311.

Almost surely, 2^139461207616 is an apocalyptic number.

139461207616 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 139461207616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146677367808).

139461207616 is an abundant number, since it is smaller than the sum of its proper divisors (153893528000).

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

139461207616 is a wasteful number, since it uses less digits than its factorization.

139461207616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145427 (or 145417 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 139461207616 in words is "one hundred thirty-nine billion, four hundred sixty-one million, two hundred seven thousand, six hundred sixteen".