75163664 has 20 divisors (see below), whose sum is σ = 154196604. Its totient is φ = 35371008.

The previous prime is 75163663. The next prime is 75163691. The reversal of 75163664 is 46636157.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 22165264 + 52998400 = 4708^2 + 7280^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (75163661) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 137897 + ... + 138440.

Almost surely, 2^75163664 is an apocalyptic number.

It is an amenable number.

75163664 is an abundant number, since it is smaller than the sum of its proper divisors (79032940).

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

75163664 is a wasteful number, since it uses less digits than its factorization.

75163664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276362 (or 276356 counting only the distinct ones).

The product of its digits is 90720, while the sum is 38.

The square root of 75163664 is about 8669.6980339571. The cubic root of 75163664 is about 422.0228643751.

The spelling of 75163664 in words is "seventy-five million, one hundred sixty-three thousand, six hundred sixty-four".