164719650 has 48 divisors (see below), whose sum is σ = 411071904. Its totient is φ = 43649280.

The previous prime is 164719589. The next prime is 164719651. The reversal of 164719650 is 56917461.

It is a super-2 number, since 2×164719650² = 54265126192245000, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 164719599 and 164719608.

It is not an unprimeable number, because it can be changed into a prime (164719651) 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, 21082 + ... + 27818.

It is an arithmetic number, because the mean of its divisors is an integer number (8563998).

Almost surely, 2^164719650 is an apocalyptic number.

164719650 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 164719650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205535952).

164719650 is an abundant number, since it is smaller than the sum of its proper divisors (246352254).

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

164719650 is a wasteful number, since it uses less digits than its factorization.

164719650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6915 (or 6910 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 164719650 is about 12834.3153303945. The cubic root of 164719650 is about 548.1698396437.

The spelling of 164719650 in words is "one hundred sixty-four million, seven hundred nineteen thousand, six hundred fifty".