665010468 has 36 divisors (see below), whose sum is σ = 1682268588. Its totient is φ = 221502720.

The previous prime is 665010449. The next prime is 665010487. The reversal of 665010468 is 864010566.

It is an interprime number because it is at equal distance from previous prime (665010449) and next prime (665010487).

It can be written as a sum of positive squares in 2 ways, for example, as 376282404 + 288728064 = 19398^2 + 16992^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47080 + ... + 59552.

It is an arithmetic number, because the mean of its divisors is an integer number (46729683).

Almost surely, 2^665010468 is an apocalyptic number.

It is an amenable number.

665010468 is an abundant number, since it is smaller than the sum of its proper divisors (1017258120).

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

665010468 is a wasteful number, since it uses less digits than its factorization.

665010468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13964 (or 13959 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 665010468 is about 25787.7968814709. The cubic root of 665010468 is about 872.8564534512.

The spelling of 665010468 in words is "six hundred sixty-five million, ten thousand, four hundred sixty-eight".