164425698 has 48 divisors (see below), whose sum is σ = 362995776. Its totient is φ = 53782560.

The previous prime is 164425691. The next prime is 164425721. The reversal of 164425698 is 896524461.

164425698 is a `hidden beast` number, since 164 + 425 + 69 + 8 = 666.

It is a super-3 number, since 3×164425698³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (164425691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 242536 + ... + 243212.

It is an arithmetic number, because the mean of its divisors is an integer number (7562412).

Almost surely, 2^164425698 is an apocalyptic number.

164425698 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

164425698 is an abundant number, since it is smaller than the sum of its proper divisors (198570078).

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

164425698 is a wasteful number, since it uses less digits than its factorization.

164425698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919 (or 916 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 164425698 is about 12822.8584176852. The cubic root of 164425698 is about 547.8435649342.

The spelling of 164425698 in words is "one hundred sixty-four million, four hundred twenty-five thousand, six hundred ninety-eight".