7164945920 has 80 divisors (see below), whose sum is σ = 18740885328. Its totient is φ = 2605424640.

The previous prime is 7164945917. The next prime is 7164945943. The reversal of 7164945920 is 295494617.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99059 + ... + 155378.

Almost surely, 2^7164945920 is an apocalyptic number.

It is an amenable number.

7164945920 is an abundant number, since it is smaller than the sum of its proper divisors (11575939408).

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

7164945920 is a wasteful number, since it uses less digits than its factorization.

7164945920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254471 (or 254455 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 47.

The square root of 7164945920 is about 84646.0035677999. The cubic root of 7164945920 is about 1927.8399343708.

The spelling of 7164945920 in words is "seven billion, one hundred sixty-four million, nine hundred forty-five thousand, nine hundred twenty".