16545170424466 has 4 divisors (see below), whose sum is σ = 24817755636702. Its totient is φ = 8272585212232.

The previous prime is 16545170424457. The next prime is 16545170424469. The reversal of 16545170424466 is 66442407154561.

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., 9032555387241 + 7512615037225 = 3005421^2 + 2740915^2 .

It is a super-2 number, since 2×16545170424466² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16545170424469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4136292606115 + ... + 4136292606118.

Almost surely, 2^{16545170424466} is an apocalyptic number.

16545170424466 is a deficient number, since it is larger than the sum of its proper divisors (8272585212236).

16545170424466 is an equidigital number, since it uses as much as digits as its factorization.

16545170424466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8272585212235.

The product of its (nonzero) digits is 19353600, while the sum is 55.

The spelling of 16545170424466 in words is "sixteen trillion, five hundred forty-five billion, one hundred seventy million, four hundred twenty-four thousand, four hundred sixty-six".