16165635131552 has 12 divisors (see below), whose sum is σ = 31826094165306. Its totient is φ = 8082817565760.

The previous prime is 16165635131549. The next prime is 16165635131629. The reversal of 16165635131552 is 25513153656161.

It can be written as a sum of positive squares in only one way, i.e., 15275246622736 + 890388508816 = 3908356^2 + 943604^2 .

It is a super-2 number, since 2×16165635131552² (a number of 27 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 16165635131552.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252588048899 + ... + 252588048962.

Almost surely, 2^{16165635131552} is an apocalyptic number.

It is an amenable number.

16165635131552 is a deficient number, since it is larger than the sum of its proper divisors (15660459033754).

16165635131552 is an equidigital number, since it uses as much as digits as its factorization.

16165635131552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505176097871 (or 505176097863 counting only the distinct ones).

The product of its digits is 2430000, while the sum is 50.

The spelling of 16165635131552 in words is "sixteen trillion, one hundred sixty-five billion, six hundred thirty-five million, one hundred thirty-one thousand, five hundred fifty-two".