666463095 has 24 divisors (see below), whose sum is σ = 1216004400. Its totient is φ = 336738816.

The previous prime is 666463093. The next prime is 666463097. The reversal of 666463095 is 590364666.

It is an interprime number because it is at equal distance from previous prime (666463093) and next prime (666463097).

It is not a de Polignac number, because 666463095 - 2¹ = 666463093 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 666463095.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666463093) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 388890 + ... + 390599.

It is an arithmetic number, because the mean of its divisors is an integer number (50666850).

Almost surely, 2^666463095 is an apocalyptic number.

666463095 is a deficient number, since it is larger than the sum of its proper divisors (549541305).

666463095 is a wasteful number, since it uses less digits than its factorization.

666463095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779519 (or 779516 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 45.

The square root of 666463095 is about 25815.9465253552. The cubic root of 666463095 is about 873.4915375686.

It can be divided in two parts, 666 and 463095, that added together give a square (463761 = 681²).

The spelling of 666463095 in words is "six hundred sixty-six million, four hundred sixty-three thousand, ninety-five".