1605161215552 has 28 divisors (see below), whose sum is σ = 3185288066800. Its totient is φ = 802568946816.

The previous prime is 1605161215531. The next prime is 1605161215601. The reversal of 1605161215552 is 2555121615061.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5758699 + ... + 6030997.

It is an arithmetic number, because the mean of its divisors is an integer number (113760288100).

Almost surely, 2^{1605161215552} is an apocalyptic number.

It is an amenable number.

1605161215552 is a deficient number, since it is larger than the sum of its proper divisors (1580126851248).

1605161215552 is an equidigital number, since it uses as much as digits as its factorization.

1605161215552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364418 (or 364408 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 40.

The spelling of 1605161215552 in words is "one trillion, six hundred five billion, one hundred sixty-one million, two hundred fifteen thousand, five hundred fifty-two".