163506540466506 has 16 divisors (see below), whose sum is σ = 344224295719200. Its totient is φ = 51633644357808.

The previous prime is 163506540466351. The next prime is 163506540466559. The reversal of 163506540466506 is 605664045605361.

It is a super-2 number, since 2×163506540466506² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 717133949301 + ... + 717133949528.

It is an arithmetic number, because the mean of its divisors is an integer number (21514018482450).

Almost surely, 2^{163506540466506} is an apocalyptic number.

163506540466506 is an abundant number, since it is smaller than the sum of its proper divisors (180717755252694).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163506540466506 is a wasteful number, since it uses less digits than its factorization.

163506540466506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434267898853.

The product of its (nonzero) digits is 46656000, while the sum is 57.

The spelling of 163506540466506 in words is "one hundred sixty-three trillion, five hundred six billion, five hundred forty million, four hundred sixty-six thousand, five hundred six".