164566531453 has 4 divisors (see below), whose sum is σ = 164592408988. Its totient is φ = 164540653920.

The previous prime is 164566531331. The next prime is 164566531457. The reversal of 164566531453 is 354135665461.

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

It can be written as a sum of positive squares in 2 ways, for example, as 74399654169 + 90166877284 = 272763^2 + 300278^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164566531453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164566531397 and 164566531406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164566531457) 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, 12929226 + ... + 12941947.

It is an arithmetic number, because the mean of its divisors is an integer number (41148102247).

Almost surely, 2^164566531453 is an apocalyptic number.

It is an amenable number.

164566531453 is a deficient number, since it is larger than the sum of its proper divisors (25877535).

164566531453 is an equidigital number, since it uses as much as digits as its factorization.

164566531453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25877534.

The product of its digits is 3888000, while the sum is 49.

The spelling of 164566531453 in words is "one hundred sixty-four billion, five hundred sixty-six million, five hundred thirty-one thousand, four hundred fifty-three".