164198055 has 16 divisors (see below), whose sum is σ = 300248064. Its totient is φ = 75061920.

The previous prime is 164198051. The next prime is 164198063. The reversal of 164198055 is 550891461.

It is not a de Polignac number, because 164198055 - 2² = 164198051 is a prime.

It is a super-2 number, since 2×164198055² = 53922002531566050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164198051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 781791 + ... + 782000.

It is an arithmetic number, because the mean of its divisors is an integer number (18765504).

Almost surely, 2^164198055 is an apocalyptic number.

164198055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

164198055 is a deficient number, since it is larger than the sum of its proper divisors (136050009).

164198055 is a wasteful number, since it uses less digits than its factorization.

164198055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563806.

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 164198055 is about 12813.9788902589. The cubic root of 164198055 is about 547.5906232259.

The spelling of 164198055 in words is "one hundred sixty-four million, one hundred ninety-eight thousand, fifty-five".