162552146221 has 4 divisors (see below), whose sum is σ = 162891504000. Its totient is φ = 162212788444.

The previous prime is 162552146173. The next prime is 162552146233. The reversal of 162552146221 is 122641255261.

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, and also an emirpimes, since its reverse is a distinct semiprime: 122641255261 = 7 ⋅17520179323.

It is a cyclic number.

It is not a de Polignac number, because 162552146221 - 2¹⁷ = 162552015149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162552146321) 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, 169678171 + ... + 169679128.

It is an arithmetic number, because the mean of its divisors is an integer number (40722876000).

Almost surely, 2^162552146221 is an apocalyptic number.

It is an amenable number.

162552146221 is a deficient number, since it is larger than the sum of its proper divisors (339357779).

162552146221 is an equidigital number, since it uses as much as digits as its factorization.

162552146221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339357778.

The product of its digits is 57600, while the sum is 37.

The spelling of 162552146221 in words is "one hundred sixty-two billion, five hundred fifty-two million, one hundred forty-six thousand, two hundred twenty-one".