164440646166453 has 8 divisors (see below), whose sum is σ = 219255277831968. Its totient is φ = 109626555972624.

The previous prime is 164440646166383. The next prime is 164440646166457. The reversal of 164440646166453 is 354661646044461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 164440646166453 - 2²⁹ = 164440109295541 is a prime.

It is a super-3 number, since 3×164440646166453³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164440646166457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134658775 + ... + 135874452.

It is an arithmetic number, because the mean of its divisors is an integer number (27406909728996).

Almost surely, 2^{164440646166453} is an apocalyptic number.

It is an amenable number.

164440646166453 is a deficient number, since it is larger than the sum of its proper divisors (54814631665515).

164440646166453 is a wasteful number, since it uses less digits than its factorization.

164440646166453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270735843.

The product of its (nonzero) digits is 119439360, while the sum is 60.

The spelling of 164440646166453 in words is "one hundred sixty-four trillion, four hundred forty billion, six hundred forty-six million, one hundred sixty-six thousand, four hundred fifty-three".