163522032256426 has 4 divisors (see below), whose sum is σ = 245283048384642. Its totient is φ = 81761016128212.

The previous prime is 163522032256421. The next prime is 163522032256483. The reversal of 163522032256426 is 624652230225361.

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., 104936770138225 + 58585262118201 = 10243865^2 + 7654101^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 163522032256426.

It is not an unprimeable number, because it can be changed into a prime (163522032256421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40880508064105 + ... + 40880508064108.

Almost surely, 2^{163522032256426} is an apocalyptic number.

163522032256426 is a deficient number, since it is larger than the sum of its proper divisors (81761016128216).

163522032256426 is an equidigital number, since it uses as much as digits as its factorization.

163522032256426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81761016128215.

The product of its (nonzero) digits is 6220800, while the sum is 49.

The spelling of 163522032256426 in words is "one hundred sixty-three trillion, five hundred twenty-two billion, thirty-two million, two hundred fifty-six thousand, four hundred twenty-six".