163406604361 has 64 divisors (see below), whose sum is σ = 226249261056. Its totient is φ = 113914252800.

The previous prime is 163406604341. The next prime is 163406604367.

163406604361 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 163406604361 - 2³¹ = 161259120713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163406604367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4828981 + ... + 4862701.

It is an arithmetic number, because the mean of its divisors is an integer number (3535144704).

Almost surely, 2^163406604361 is an apocalyptic number.

163406604361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

163406604361 is a deficient number, since it is larger than the sum of its proper divisors (62842656695).

163406604361 is a wasteful number, since it uses less digits than its factorization.

163406604361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33902.

The product of its (nonzero) digits is 186624, while the sum is 40.

It can be divided in two parts, 163406 and 604361, that added together give a palindrome (767767).

The spelling of 163406604361 in words is "one hundred sixty-three billion, four hundred six million, six hundred four thousand, three hundred sixty-one".