1605416770412 has 96 divisors (see below), whose sum is σ = 3465316509312. Its totient is φ = 633734793216.

The previous prime is 1605416770403. The next prime is 1605416770429. The reversal of 1605416770412 is 2140776145061.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 543654728 + ... + 543657680.

It is an arithmetic number, because the mean of its divisors is an integer number (36097046972).

Almost surely, 2^{1605416770412} 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 1605416770412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1732658254656).

1605416770412 is an abundant number, since it is smaller than the sum of its proper divisors (1859899738900).

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

1605416770412 is a wasteful number, since it uses less digits than its factorization.

1605416770412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5707 (or 5705 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 44.

The spelling of 1605416770412 in words is "one trillion, six hundred five billion, four hundred sixteen million, seven hundred seventy thousand, four hundred twelve".