162631645565253 has 4 divisors (see below), whose sum is σ = 216842194087008. Its totient is φ = 108421097043500.

The previous prime is 162631645565251. The next prime is 162631645565269. The reversal of 162631645565253 is 352565546136261.

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 a cyclic number.

It is not a de Polignac number, because 162631645565253 - 2¹ = 162631645565251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162631645565251) 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, 27105274260873 + ... + 27105274260878.

It is an arithmetic number, because the mean of its divisors is an integer number (54210548521752).

Almost surely, 2^{162631645565253} is an apocalyptic number.

It is an amenable number.

162631645565253 is a deficient number, since it is larger than the sum of its proper divisors (54210548521755).

162631645565253 is an equidigital number, since it uses as much as digits as its factorization.

162631645565253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54210548521754.

The product of its digits is 116640000, while the sum is 60.

The spelling of 162631645565253 in words is "one hundred sixty-two trillion, six hundred thirty-one billion, six hundred forty-five million, five hundred sixty-five thousand, two hundred fifty-three".