164627568550 has 48 divisors (see below), whose sum is σ = 313767417600. Its totient is φ = 64226131200.

The previous prime is 164627568541. The next prime is 164627568569. The reversal of 164627568550 is 55865726461.

It is a junction number, because it is equal to n+sod(n) for n = 164627568491 and 164627568500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8516296 + ... + 8535604.

It is an arithmetic number, because the mean of its divisors is an integer number (6536821200).

Almost surely, 2^164627568550 is an apocalyptic number.

164627568550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164627568550 is a deficient number, since it is larger than the sum of its proper divisors (149139849050).

164627568550 is a wasteful number, since it uses less digits than its factorization.

164627568550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23521 (or 23516 counting only the distinct ones).

The product of its (nonzero) digits is 12096000, while the sum is 55.

The spelling of 164627568550 in words is "one hundred sixty-four billion, six hundred twenty-seven million, five hundred sixty-eight thousand, five hundred fifty".