745210167556161 has 4 divisors (see below), whose sum is σ = 993613556741552. Its totient is φ = 496806778370772.

The previous prime is 745210167556159. The next prime is 745210167556177. The reversal of 745210167556161 is 161655761012547.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 745210167556161 - 2¹ = 745210167556159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (745210167556661) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 124201694592691 + ... + 124201694592696.

It is an arithmetic number, because the mean of its divisors is an integer number (248403389185388).

Almost surely, 2^{745210167556161} is an apocalyptic number.

It is an amenable number.

745210167556161 is a deficient number, since it is larger than the sum of its proper divisors (248403389185391).

745210167556161 is a wasteful number, since it uses less digits than its factorization.

745210167556161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248403389185390.

The product of its (nonzero) digits is 10584000, while the sum is 57.

The spelling of 745210167556161 in words is "seven hundred forty-five trillion, two hundred ten billion, one hundred sixty-seven million, five hundred fifty-six thousand, one hundred sixty-one".