161427168001 has 32 divisors (see below), whose sum is σ = 184541184000. Its totient is φ = 139862479680.

The previous prime is 161427167987. The next prime is 161427168103. The reversal of 161427168001 is 100861724161.

It is not a de Polignac number, because 161427168001 - 2¹¹ = 161427165953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161427160001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8052076 + ... + 8072098.

It is an arithmetic number, because the mean of its divisors is an integer number (5766912000).

Almost surely, 2^161427168001 is an apocalyptic number.

161427168001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

161427168001 is a deficient number, since it is larger than the sum of its proper divisors (23114015999).

161427168001 is a wasteful number, since it uses less digits than its factorization.

161427168001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20389.

The product of its (nonzero) digits is 16128, while the sum is 37.

The spelling of 161427168001 in words is "one hundred sixty-one billion, four hundred twenty-seven million, one hundred sixty-eight thousand, one".