1612643164 has 96 divisors (see below), whose sum is σ = 3331238400. Its totient is φ = 675360000.

The previous prime is 1612643161. The next prime is 1612643173. The reversal of 1612643164 is 4613462161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1612643161) 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 31 ways as a sum of consecutive naturals, for example, 5994822 + ... + 5995090.

It is an arithmetic number, because the mean of its divisors is an integer number (34700400).

Almost surely, 2^1612643164 is an apocalyptic number.

It is an amenable number.

1612643164 is an abundant number, since it is smaller than the sum of its proper divisors (1718595236).

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

1612643164 is a wasteful number, since it uses less digits than its factorization.

1612643164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475 (or 473 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 1612643164 is about 40157.7285712228. The cubic root of 1612643164 is about 1172.6797524023.

The spelling of 1612643164 in words is "one billion, six hundred twelve million, six hundred forty-three thousand, one hundred sixty-four".