667104040 has 16 divisors (see below), whose sum is σ = 1500984180. Its totient is φ = 266841600.

The previous prime is 667104037. The next prime is 667104047. The reversal of 667104040 is 40401766.

It can be written as a sum of positive squares in 2 ways, for example, as 643231044 + 23872996 = 25362^2 + 4886^2 .

It is not an unprimeable number, because it can be changed into a prime (667104047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8338761 + ... + 8338840.

Almost surely, 2^667104040 is an apocalyptic number.

It is an amenable number.

667104040 is an abundant number, since it is smaller than the sum of its proper divisors (833880140).

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

667104040 is a wasteful number, since it uses less digits than its factorization.

667104040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16677612 (or 16677608 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 667104040 is about 25828.3572841944. The cubic root of 667104040 is about 873.7714633734.

The spelling of 667104040 in words is "six hundred sixty-seven million, one hundred four thousand, forty".