164501616 has 40 divisors (see below), whose sum is σ = 431313664. Its totient is φ = 54014400.

The previous prime is 164501611. The next prime is 164501633. The reversal of 164501616 is 616105461.

It is a super-2 number, since 2×164501616² = 54121563333222912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164501611) 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, 22360 + ... + 28791.

Almost surely, 2^164501616 is an apocalyptic number.

164501616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

164501616 is an abundant number, since it is smaller than the sum of its proper divisors (266812048).

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

164501616 is a wasteful number, since it uses less digits than its factorization.

164501616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51229 (or 51223 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 164501616 is about 12825.8183364649. The cubic root of 164501616 is about 547.9278680344.

The spelling of 164501616 in words is "one hundred sixty-four million, five hundred one thousand, six hundred sixteen".