164420650 has 24 divisors (see below), whose sum is σ = 308539404. Its totient is φ = 65184000.

The previous prime is 164420611. The next prime is 164420689. The reversal of 164420650 is 56024461.

164420650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (164420611) and next prime (164420689).

It can be written as a sum of positive squares in 6 ways, for example, as 145161 + 164275489 = 381^2 + 12817^2 .

It is a super-3 number, since 3×164420650³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8901 + ... + 20200.

Almost surely, 2^164420650 is an apocalyptic number.

164420650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164420650 is a deficient number, since it is larger than the sum of its proper divisors (144118754).

164420650 is a wasteful number, since it uses less digits than its factorization.

164420650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29226 (or 29221 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 164420650 is about 12822.6615801869. The cubic root of 164420650 is about 547.8379584654.

The spelling of 164420650 in words is "one hundred sixty-four million, four hundred twenty thousand, six hundred fifty".