163662155345 has 16 divisors (see below), whose sum is σ = 211547727552. Its totient is φ = 120831998400.

The previous prime is 163662155311. The next prime is 163662155347. The reversal of 163662155345 is 543551266361.

It is not a de Polignac number, because 163662155345 - 2¹² = 163662151249 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 163662155345.

It is not an unprimeable number, because it can be changed into a prime (163662155347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31634 + ... + 572996.

It is an arithmetic number, because the mean of its divisors is an integer number (13221732972).

Almost surely, 2^163662155345 is an apocalyptic number.

It is an amenable number.

163662155345 is a deficient number, since it is larger than the sum of its proper divisors (47885572207).

163662155345 is a wasteful number, since it uses less digits than its factorization.

163662155345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546032.

The product of its digits is 1944000, while the sum is 47.

The spelling of 163662155345 in words is "one hundred sixty-three billion, six hundred sixty-two million, one hundred fifty-five thousand, three hundred forty-five".