75666465 has 48 divisors (see below), whose sum is σ = 151632000. Its totient is φ = 34189056.

The previous prime is 75666463. The next prime is 75666467. The reversal of 75666465 is 56466657.

It is an interprime number because it is at equal distance from previous prime (75666463) and next prime (75666467).

It is not a de Polignac number, because 75666465 - 2¹ = 75666463 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 75666465.

It is not an unprimeable number, because it can be changed into a prime (75666463) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26686 + ... + 29384.

It is an arithmetic number, because the mean of its divisors is an integer number (3159000).

Almost surely, 2^75666465 is an apocalyptic number.

It is an amenable number.

75666465 is an abundant number, since it is smaller than the sum of its proper divisors (75965535).

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

75666465 is a wasteful number, since it uses less digits than its factorization.

75666465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2806 (or 2803 counting only the distinct ones).

The product of its digits is 907200, while the sum is 45.

The square root of 75666465 is about 8698.6473086337. The cubic root of 75666465 is about 422.9618026303.

The spelling of 75666465 in words is "seventy-five million, six hundred sixty-six thousand, four hundred sixty-five".