164631150220 has 48 divisors (see below), whose sum is σ = 363969446400. Its totient is φ = 62378320320.

The previous prime is 164631150161. The next prime is 164631150221. The reversal of 164631150220 is 22051136461.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (164631150221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3400141 + ... + 3448219.

It is an arithmetic number, because the mean of its divisors is an integer number (7582696800).

Almost surely, 2^164631150220 is an apocalyptic number.

164631150220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164631150220 is an abundant number, since it is smaller than the sum of its proper divisors (199338296180).

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

164631150220 is a wasteful number, since it uses less digits than its factorization.

164631150220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57118 (or 57116 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 164631150220 its reverse (22051136461), we get a palindrome (186682286681).

The spelling of 164631150220 in words is "one hundred sixty-four billion, six hundred thirty-one million, one hundred fifty thousand, two hundred twenty".