167540545045761 has 4 divisors (see below), whose sum is σ = 223387393394352. Its totient is φ = 111693696697172.

The previous prime is 167540545045729. The next prime is 167540545045843.

It is a happy number.

167540545045761 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 167540545045761 - 2⁵ = 167540545045729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 167540545045695 and 167540545045704.

It is not an unprimeable number, because it can be changed into a prime (167540545041761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27923424174291 + ... + 27923424174296.

It is an arithmetic number, because the mean of its divisors is an integer number (55846848348588).

Almost surely, 2^{167540545045761} is an apocalyptic number.

It is an amenable number.

167540545045761 is a deficient number, since it is larger than the sum of its proper divisors (55846848348591).

167540545045761 is an equidigital number, since it uses as much as digits as its factorization.

167540545045761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55846848348590.

The product of its (nonzero) digits is 70560000, while the sum is 60.

The spelling of 167540545045761 in words is "one hundred sixty-seven trillion, five hundred forty billion, five hundred forty-five million, forty-five thousand, seven hundred sixty-one".