164630401650 has 576 divisors, whose sum is σ = 555655935744. Its totient is φ = 34366464000.

The previous prime is 164630401631. The next prime is 164630401757. The reversal of 164630401650 is 56104036461.

It is a happy number.

164630401650 is a `hidden beast` number, since 1 + 6 + 4 + 630 + 4 + 0 + 16 + 5 + 0 = 666.

164630401650 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 60680694 + ... + 60683406.

It is an arithmetic number, because the mean of its divisors is an integer number (964680444).

Almost surely, 2^164630401650 is an apocalyptic number.

164630401650 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 164630401650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277827967872).

164630401650 is an abundant number, since it is smaller than the sum of its proper divisors (391025534094).

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

164630401650 is a wasteful number, since it uses less digits than its factorization.

164630401650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2819 (or 2811 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 164630401650 in words is "one hundred sixty-four billion, six hundred thirty million, four hundred one thousand, six hundred fifty".