201667167256665 has 32 divisors (see below), whose sum is σ = 359490254063616. Its totient is φ = 95697637069760.

The previous prime is 201667167256663. The next prime is 201667167256691. The reversal of 201667167256665 is 566652761766102.

201667167256665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 201667167256665 - 2¹ = 201667167256663 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201667167256596 and 201667167256605.

It is not an unprimeable number, because it can be changed into a prime (201667167256661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13002388587 + ... + 13002404096.

It is an arithmetic number, because the mean of its divisors is an integer number (11234070439488).

Almost surely, 2^{201667167256665} is an apocalyptic number.

It is an amenable number.

201667167256665 is a deficient number, since it is larger than the sum of its proper divisors (157823086806951).

201667167256665 is a wasteful number, since it uses less digits than its factorization.

201667167256665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26004792749.

The product of its (nonzero) digits is 228614400, while the sum is 66.

The spelling of 201667167256665 in words is "two hundred one trillion, six hundred sixty-seven billion, one hundred sixty-seven million, two hundred fifty-six thousand, six hundred sixty-five".