162561011112407 has 2 divisors, whose sum is σ = 162561011112408. Its totient is φ = 162561011112406.

The previous prime is 162561011112391. The next prime is 162561011112421. The reversal of 162561011112407 is 704211110165261.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (704211110165261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 162561011112407 - 2⁴ = 162561011112391 is a prime.

It is a super-2 number, since 2×162561011112407² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (162561011112007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81280505556203 + 81280505556204.

It is an arithmetic number, because the mean of its divisors is an integer number (81280505556204).

Almost surely, 2^{162561011112407} is an apocalyptic number.

162561011112407 is a deficient number, since it is larger than the sum of its proper divisors (1).

162561011112407 is an equidigital number, since it uses as much as digits as its factorization.

162561011112407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 38.

Adding to 162561011112407 its reverse (704211110165261), we get a palindrome (866772121277668).

The spelling of 162561011112407 in words is "one hundred sixty-two trillion, five hundred sixty-one billion, eleven million, one hundred twelve thousand, four hundred seven".