164551955 has 8 divisors (see below), whose sum is σ = 197812800. Its totient is φ = 131407936.

The previous prime is 164551939. The next prime is 164551957. The reversal of 164551955 is 559155461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164551955 - 2⁴ = 164551939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164551957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26075 + ... + 31764.

It is an arithmetic number, because the mean of its divisors is an integer number (24726600).

Almost surely, 2^164551955 is an apocalyptic number.

164551955 is a deficient number, since it is larger than the sum of its proper divisors (33260845).

164551955 is an equidigital number, since it uses as much as digits as its factorization.

164551955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58413.

The product of its digits is 135000, while the sum is 41.

The square root of 164551955 is about 12827.7805952550. The cubic root of 164551955 is about 547.9837526485.

The spelling of 164551955 in words is "one hundred sixty-four million, five hundred fifty-one thousand, nine hundred fifty-five".