1605422605712 has 10 divisors (see below), whose sum is σ = 3110506298598. Its totient is φ = 802711302848.

The previous prime is 1605422605691. The next prime is 1605422605727. The reversal of 1605422605712 is 2175062245061.

It can be written as a sum of positive squares in only one way, i.e., 1542554064016 + 62868541696 = 1241996^2 + 250736^2 .

It is a super-2 number, since 2×1605422605712² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1605422605712.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50169456413 + ... + 50169456444.

Almost surely, 2^{1605422605712} is an apocalyptic number.

It is an amenable number.

1605422605712 is a deficient number, since it is larger than the sum of its proper divisors (1505083692886).

1605422605712 is a wasteful number, since it uses less digits than its factorization.

1605422605712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100338912865 (or 100338912859 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 41.

The spelling of 1605422605712 in words is "one trillion, six hundred five billion, four hundred twenty-two million, six hundred five thousand, seven hundred twelve".