164046472 has 8 divisors (see below), whose sum is σ = 307587150. Its totient is φ = 82023232.

The previous prime is 164046469. The next prime is 164046499. The reversal of 164046472 is 274640461.

It can be written as a sum of positive squares in only one way, i.e., 84015556 + 80030916 = 9166^2 + 8946^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×164046472² = 53822489951293568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10252897 + ... + 10252912.

Almost surely, 2^164046472 is an apocalyptic number.

It is an amenable number.

164046472 is a deficient number, since it is larger than the sum of its proper divisors (143540678).

164046472 is a wasteful number, since it uses less digits than its factorization.

164046472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20505815 (or 20505811 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 164046472 is about 12808.0627731129. The cubic root of 164046472 is about 547.4220646209.

The spelling of 164046472 in words is "one hundred sixty-four million, forty-six thousand, four hundred seventy-two".