164635384762650 has 48 divisors (see below), whose sum is σ = 412883346988800. Its totient is φ = 43409479724160.

The previous prime is 164635384762637. The next prime is 164635384762657. The reversal of 164635384762650 is 56267483536461.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (164635384762657) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6166105930 + ... + 6166132629.

It is an arithmetic number, because the mean of its divisors is an integer number (8601736395600).

Almost surely, 2^{164635384762650} is an apocalyptic number.

164635384762650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164635384762650 is an abundant number, since it is smaller than the sum of its proper divisors (248247962226150).

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

164635384762650 is a wasteful number, since it uses less digits than its factorization.

164635384762650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12332238663 (or 12332238658 counting only the distinct ones).

The product of its (nonzero) digits is 522547200, while the sum is 66.

The spelling of 164635384762650 in words is "one hundred sixty-four trillion, six hundred thirty-five billion, three hundred eighty-four million, seven hundred sixty-two thousand, six hundred fifty".