163540042345354 has 4 divisors (see below), whose sum is σ = 245310063518034. Its totient is φ = 81770021172676.

The previous prime is 163540042345301. The next prime is 163540042345363. The reversal of 163540042345354 is 453543240045361.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 82236368254329 + 81303674091025 = 9068427^2 + 9016855^2 .

It is a junction number, because it is equal to n+sod(n) for n = 163540042345298 and 163540042345307.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40885010586337 + ... + 40885010586340.

Almost surely, 2^{163540042345354} is an apocalyptic number.

163540042345354 is a deficient number, since it is larger than the sum of its proper divisors (81770021172680).

163540042345354 is an equidigital number, since it uses as much as digits as its factorization.

163540042345354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81770021172679.

The product of its (nonzero) digits is 10368000, while the sum is 49.

The spelling of 163540042345354 in words is "one hundred sixty-three trillion, five hundred forty billion, forty-two million, three hundred forty-five thousand, three hundred fifty-four".