1266650015 has 8 divisors (see below), whose sum is σ = 1520274528. Its totient is φ = 1013123680.

The previous prime is 1266650009. The next prime is 1266650027. The reversal of 1266650015 is 5100566621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1266650015 - 2¹⁴ = 1266633631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7694 + ... + 50916.

It is an arithmetic number, because the mean of its divisors is an integer number (190034316).

Almost surely, 2^1266650015 is an apocalyptic number.

1266650015 is a deficient number, since it is larger than the sum of its proper divisors (253624513).

1266650015 is an equidigital number, since it uses as much as digits as its factorization.

1266650015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49089.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 1266650015 is about 35590.0269036144. The cubic root of 1266650015 is about 1081.9791142302.

The spelling of 1266650015 in words is "one billion, two hundred sixty-six million, six hundred fifty thousand, fifteen".