1605620006162 has 4 divisors (see below), whose sum is σ = 2408430009246. Its totient is φ = 802810003080.

The previous prime is 1605620006119. The next prime is 1605620006171. The reversal of 1605620006162 is 2616000265061.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1541419088521 + 64200917641 = 1241539^2 + 253379^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401405001539 + ... + 401405001542.

Almost surely, 2^{1605620006162} is an apocalyptic number.

1605620006162 is a deficient number, since it is larger than the sum of its proper divisors (802810003084).

1605620006162 is an equidigital number, since it uses as much as digits as its factorization.

1605620006162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802810003083.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 1605620006162 in words is "one trillion, six hundred five billion, six hundred twenty million, six thousand, one hundred sixty-two".