666130415 has 32 divisors (see below), whose sum is σ = 838861056. Its totient is φ = 507386880.

The previous prime is 666130391. The next prime is 666130417. The reversal of 666130415 is 514031666.

It is not a de Polignac number, because 666130415 - 2¹² = 666126319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666130417) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1886879 + ... + 1887231.

It is an arithmetic number, because the mean of its divisors is an integer number (26214408).

Almost surely, 2^666130415 is an apocalyptic number.

666130415 is a deficient number, since it is larger than the sum of its proper divisors (172730641).

666130415 is a wasteful number, since it uses less digits than its factorization.

666130415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 666130415 is about 25809.5024167457. The cubic root of 666130415 is about 873.3461724152.

The spelling of 666130415 in words is "six hundred sixty-six million, one hundred thirty thousand, four hundred fifteen".