1260666607 has 4 divisors (see below), whose sum is σ = 1263810816. Its totient is φ = 1257522400.

The previous prime is 1260666601. The next prime is 1260666623. The reversal of 1260666607 is 7066660621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1260666607 - 2¹⁵ = 1260633839 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1260666607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1260666601) 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, 1571503 + ... + 1572304.

It is an arithmetic number, because the mean of its divisors is an integer number (315952704).

Almost surely, 2^1260666607 is an apocalyptic number.

1260666607 is a deficient number, since it is larger than the sum of its proper divisors (3144209).

1260666607 is an equidigital number, since it uses as much as digits as its factorization.

1260666607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3144208.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 1260666607 is about 35505.8672193766. The cubic root of 1260666607 is about 1080.2727383312.

The spelling of 1260666607 in words is "one billion, two hundred sixty million, six hundred sixty-six thousand, six hundred seven".