1616245473312 has 384 divisors, whose sum is σ = 5330068531200. Its totient is φ = 473776128000.

The previous prime is 1616245473263. The next prime is 1616245473317. The reversal of 1616245473312 is 2133745426161.

1616245473312 is a `hidden beast` number, since 1 + 6 + 1 + 62 + 4 + 547 + 33 + 12 = 666.

It is a super-2 number, since 2×1616245473312² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1616245473317) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13143312 + ... + 13265712.

It is an arithmetic number, because the mean of its divisors is an integer number (13880386800).

Almost surely, 2^{1616245473312} is an apocalyptic number.

1616245473312 is a gapful number since it is divisible by the number (12) 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 1616245473312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2665034265600).

1616245473312 is an abundant number, since it is smaller than the sum of its proper divisors (3713823057888).

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

1616245473312 is a wasteful number, since it uses less digits than its factorization.

1616245473312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122497 (or 122483 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The spelling of 1616245473312 in words is "one trillion, six hundred sixteen billion, two hundred forty-five million, four hundred seventy-three thousand, three hundred twelve".