163641310524434 has 8 divisors (see below), whose sum is σ = 252096072970188. Its totient is φ = 79609286201040.

The previous prime is 163641310524407. The next prime is 163641310524463. The reversal of 163641310524434 is 434425013146361.

It can be written as a sum of positive squares in 2 ways, for example, as 151641910604209 + 11999399920225 = 12314297^2 + 3464015^2 .

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

It is a super-2 number, since 2×163641310524434² (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, 1105684530497 + ... + 1105684530644.

Almost surely, 2^{163641310524434} is an apocalyptic number.

163641310524434 is a deficient number, since it is larger than the sum of its proper divisors (88454762445754).

163641310524434 is a wasteful number, since it uses less digits than its factorization.

163641310524434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2211369061180.

The product of its (nonzero) digits is 2488320, while the sum is 47.

The spelling of 163641310524434 in words is "one hundred sixty-three trillion, six hundred forty-one billion, three hundred ten million, five hundred twenty-four thousand, four hundred thirty-four".