164850574650 has 96 divisors (see below), whose sum is σ = 414835948800. Its totient is φ = 43315476480.

The previous prime is 164850574639. The next prime is 164850574661. The reversal of 164850574650 is 56475058461.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (164850574639) and next prime (164850574661).

It is a junction number, because it is equal to n+sod(n) for n = 164850574593 and 164850574602.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12071026 + ... + 12084674.

It is an arithmetic number, because the mean of its divisors is an integer number (4321207800).

Almost surely, 2^164850574650 is an apocalyptic number.

164850574650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 164850574650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207417974400).

164850574650 is an abundant number, since it is smaller than the sum of its proper divisors (249985374150).

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

164850574650 is a wasteful number, since it uses less digits than its factorization.

164850574650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14840 (or 14835 counting only the distinct ones).

The product of its (nonzero) digits is 4032000, while the sum is 51.

The spelling of 164850574650 in words is "one hundred sixty-four billion, eight hundred fifty million, five hundred seventy-four thousand, six hundred fifty".