164262045550 has 24 divisors (see below), whose sum is σ = 308677180896. Its totient is φ = 65027447040.

The previous prime is 164262045547. The next prime is 164262045551. The reversal of 164262045550 is 55540262461.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164262045551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16929382 + ... + 16939081.

It is an arithmetic number, because the mean of its divisors is an integer number (12861549204).

Almost surely, 2^164262045550 is an apocalyptic number.

164262045550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164262045550 is a deficient number, since it is larger than the sum of its proper divisors (144415135346).

164262045550 is a wasteful number, since it uses less digits than its factorization.

164262045550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33868572 (or 33868567 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 40.

The spelling of 164262045550 in words is "one hundred sixty-four billion, two hundred sixty-two million, forty-five thousand, five hundred fifty".