1605065651052 has 24 divisors (see below), whose sum is σ = 3832249772736. Its totient is φ = 522579514128.

The previous prime is 1605065651029. The next prime is 1605065651053. The reversal of 1605065651052 is 2501565605061.

It is a junction number, because it is equal to n+sod(n) for n = 1605065650995 and 1605065651013.

It is not an unprimeable number, because it can be changed into a prime (1605065651053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1555295658 + ... + 1555296689.

It is an arithmetic number, because the mean of its divisors is an integer number (159677073864).

Almost surely, 2^{1605065651052} is an apocalyptic number.

1605065651052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1605065651052 is an abundant number, since it is smaller than the sum of its proper divisors (2227184121684).

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

1605065651052 is a wasteful number, since it uses less digits than its factorization.

1605065651052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3110592397 (or 3110592395 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 42.

The spelling of 1605065651052 in words is "one trillion, six hundred five billion, sixty-five million, six hundred fifty-one thousand, fifty-two".