164635006646505 has 16 divisors (see below), whose sum is σ = 263417345040960. Its totient is φ = 87804892075968.

The previous prime is 164635006646483. The next prime is 164635006646507. The reversal of 164635006646505 is 505646600536461.

164635006646505 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 164635006646505 - 2¹⁷ = 164635006515433 is a prime.

It is a super-3 number, since 3×164635006646505³ (a number of 44 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (164635006646507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24729447 + ... + 30672716.

It is an arithmetic number, because the mean of its divisors is an integer number (16463584065060).

Almost surely, 2^{164635006646505} is an apocalyptic number.

164635006646505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

164635006646505 is a deficient number, since it is larger than the sum of its proper divisors (98782338394455).

164635006646505 is a wasteful number, since it uses less digits than its factorization.

164635006646505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55600280.

The product of its (nonzero) digits is 46656000, while the sum is 57.

The spelling of 164635006646505 in words is "one hundred sixty-four trillion, six hundred thirty-five billion, six million, six hundred forty-six thousand, five hundred five".