162563550749 has 4 divisors (see below), whose sum is σ = 168169190460. Its totient is φ = 156957911040.

The previous prime is 162563550731. The next prime is 162563550763. The reversal of 162563550749 is 947055365261.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 83112853849 + 79450696900 = 288293^2 + 281870^2 .

It is not a de Polignac number, because 162563550749 - 2¹⁶ = 162563485213 is a prime.

It is a super-2 number, since 2×162563550749² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 162563550749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162563550769) 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, 2802819812 + ... + 2802819869.

It is an arithmetic number, because the mean of its divisors is an integer number (42042297615).

Almost surely, 2^162563550749 is an apocalyptic number.

It is an amenable number.

162563550749 is a deficient number, since it is larger than the sum of its proper divisors (5605639711).

162563550749 is an equidigital number, since it uses as much as digits as its factorization.

162563550749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5605639710.

The product of its (nonzero) digits is 6804000, while the sum is 53.

The spelling of 162563550749 in words is "one hundred sixty-two billion, five hundred sixty-three million, five hundred fifty thousand, seven hundred forty-nine".