164456472 has 32 divisors (see below), whose sum is σ = 412861680. Its totient is φ = 54589440.

The previous prime is 164456459. The next prime is 164456473. The reversal of 164456472 is 274654461.

It is a self number, because there is not a number n which added to its sum of digits gives 164456472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164456473) 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, 8433 + ... + 20000.

Almost surely, 2^164456472 is an apocalyptic number.

164456472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

164456472 is an abundant number, since it is smaller than the sum of its proper divisors (248405208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164456472 is a wasteful number, since it uses less digits than its factorization.

164456472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28683 (or 28679 counting only the distinct ones).

The product of its digits is 161280, while the sum is 39.

The square root of 164456472 is about 12824.0583280021. The cubic root of 164456472 is about 547.8777410319.

The spelling of 164456472 in words is "one hundred sixty-four million, four hundred fifty-six thousand, four hundred seventy-two".