164340456460525 has 6 divisors (see below), whose sum is σ = 203782166011082. Its totient is φ = 131472365168400.

The previous prime is 164340456460501. The next prime is 164340456460549. The reversal of 164340456460525 is 525064654043461.

It is an interprime number because it is at equal distance from previous prime (164340456460501) and next prime (164340456460549).

It can be written as a sum of positive squares in 3 ways, for example, as 13849288489 + 164326607172036 = 117683^2 + 12818994^2 .

It is not a de Polignac number, because 164340456460525 - 2⁹ = 164340456460013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3286809129186 + ... + 3286809129235.

Almost surely, 2^{164340456460525} is an apocalyptic number.

It is an amenable number.

164340456460525 is a deficient number, since it is larger than the sum of its proper divisors (39441709550557).

164340456460525 is an equidigital number, since it uses as much as digits as its factorization.

164340456460525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6573618258431 (or 6573618258426 counting only the distinct ones).

The product of its (nonzero) digits is 41472000, while the sum is 55.

The spelling of 164340456460525 in words is "one hundred sixty-four trillion, three hundred forty billion, four hundred fifty-six million, four hundred sixty thousand, five hundred twenty-five".