163445464612546 has 8 divisors (see below), whose sum is σ = 245168689463100. Its totient is φ = 81722568124848.

The previous prime is 163445464612519. The next prime is 163445464612627. The reversal of 163445464612546 is 645216464544361.

It can be written as a sum of positive squares in 2 ways, for example, as 123496301926321 + 39949162686225 = 11112889^2 + 6320535^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×163445464612546² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80842521 + ... + 82839628.

Almost surely, 2^{163445464612546} is an apocalyptic number.

163445464612546 is a deficient number, since it is larger than the sum of its proper divisors (81723224850554).

163445464612546 is a wasteful number, since it uses less digits than its factorization.

163445464612546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164181428.

The product of its digits is 199065600, while the sum is 61.

The spelling of 163445464612546 in words is "one hundred sixty-three trillion, four hundred forty-five billion, four hundred sixty-four million, six hundred twelve thousand, five hundred forty-six".