16545766662650 has 36 divisors (see below), whose sum is σ = 32480119157742. Its totient is φ = 6269974728480.

The previous prime is 16545766662641. The next prime is 16545766662673. The reversal of 16545766662650 is 5626666754561.

It can be written as a sum of positive squares in 3 ways, for example, as 11488228946041 + 5057537716609 = 3389429^2 + 2248897^2 .

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 in 17 ways as a sum of consecutive naturals, for example, 458313437 + ... + 458349536.

Almost surely, 2^{16545766662650} is an apocalyptic number.

16545766662650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16545766662650 is a deficient number, since it is larger than the sum of its proper divisors (15934352495092).

16545766662650 is a wasteful number, since it uses less digits than its factorization.

16545766662650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916663023 (or 916662999 counting only the distinct ones).

The product of its (nonzero) digits is 326592000, while the sum is 65.

The spelling of 16545766662650 in words is "sixteen trillion, five hundred forty-five billion, seven hundred sixty-six million, six hundred sixty-two thousand, six hundred fifty".