164627568500 has 24 divisors (see below), whose sum is σ = 359546610696. Its totient is φ = 65851027200.

The previous prime is 164627568463. The next prime is 164627568517. The reversal of 164627568500 is 5865726461.

It can be written as a sum of positive squares in 4 ways, for example, as 9646775524 + 154980792976 = 98218^2 + 393676^2 .

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164627069 + ... + 164628068.

It is an arithmetic number, because the mean of its divisors is an integer number (14981108779).

Almost surely, 2^164627568500 is an apocalyptic number.

164627568500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164627568500 is an abundant number, since it is smaller than the sum of its proper divisors (194919042196).

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

164627568500 is a wasteful number, since it uses less digits than its factorization.

164627568500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329255156 (or 329255144 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 50.

The spelling of 164627568500 in words is "one hundred sixty-four billion, six hundred twenty-seven million, five hundred sixty-eight thousand, five hundred".