16545126477442 has 8 divisors (see below), whose sum is σ = 24856406862732. Its totient is φ = 8259657523200.

The previous prime is 16545126477419. The next prime is 16545126477443. The reversal of 16545126477442 is 24477462154561.

It can be written as a sum of positive squares in 2 ways, for example, as 16542677118361 + 2449359081 = 4067269^2 + 49491^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×16545126477442³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (16545126477443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6452856159 + ... + 6452858722.

Almost surely, 2^{16545126477442} is an apocalyptic number.

16545126477442 is a deficient number, since it is larger than the sum of its proper divisors (8311280385290).

16545126477442 is a wasteful number, since it uses less digits than its factorization.

16545126477442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12905715524.

The product of its digits is 45158400, while the sum is 58.

The spelling of 16545126477442 in words is "sixteen trillion, five hundred forty-five billion, one hundred twenty-six million, four hundred seventy-seven thousand, four hundred forty-two".