164851490850 has 48 divisors (see below), whose sum is σ = 409861648128. Its totient is φ = 43849650240.

The previous prime is 164851490831. The next prime is 164851490861. The reversal of 164851490850 is 58094158461.

It is a happy number.

164851490850 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 164851490793 and 164851490802.

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, 1324594 + ... + 1443693.

It is an arithmetic number, because the mean of its divisors is an integer number (8538784336).

Almost surely, 2^164851490850 is an apocalyptic number.

164851490850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164851490850 is an abundant number, since it is smaller than the sum of its proper divisors (245010157278).

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

164851490850 is a wasteful number, since it uses less digits than its factorization.

164851490850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2768699 (or 2768694 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 51.

The spelling of 164851490850 in words is "one hundred sixty-four billion, eight hundred fifty-one million, four hundred ninety thousand, eight hundred fifty".