196720164 has 36 divisors (see below), whose sum is σ = 515684624. Its totient is φ = 65573064.

The previous prime is 196720159. The next prime is 196720169. The reversal of 196720164 is 461027691.

It is an interprime number because it is at equal distance from previous prime (196720159) and next prime (196720169).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (196720169) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100222 + ... + 102165.

Almost surely, 2^196720164 is an apocalyptic number.

It is an amenable number.

196720164 is an abundant number, since it is smaller than the sum of its proper divisors (318964460).

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

196720164 is a wasteful number, since it uses less digits than its factorization.

196720164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202406 (or 202392 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 196720164 is about 14025.6965602426. The cubic root of 196720164 is about 581.5891456784.

The spelling of 196720164 in words is "one hundred ninety-six million, seven hundred twenty thousand, one hundred sixty-four".