16545054217402 has 4 divisors (see below), whose sum is σ = 24817581326106. Its totient is φ = 8272527108700.

The previous prime is 16545054217387. The next prime is 16545054217459. The reversal of 16545054217402 is 20471245054561.

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., 13116776080681 + 3428278136721 = 3621709^2 + 1851561^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4136263554349 + ... + 4136263554352.

Almost surely, 2^{16545054217402} is an apocalyptic number.

16545054217402 is a deficient number, since it is larger than the sum of its proper divisors (8272527108704).

16545054217402 is an equidigital number, since it uses as much as digits as its factorization.

16545054217402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8272527108703.

The product of its (nonzero) digits is 1344000, while the sum is 46.

The spelling of 16545054217402 in words is "sixteen trillion, five hundred forty-five billion, fifty-four million, two hundred seventeen thousand, four hundred two".