1272376066 has 8 divisors (see below), whose sum is σ = 2055376764. Its totient is φ = 587250480.

The previous prime is 1272376037. The next prime is 1272376069. The reversal of 1272376066 is 6606732721.

It can be written as a sum of positive squares in 2 ways, for example, as 1117498041 + 154878025 = 33429^2 + 12445^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1272376069) 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, 24468745 + ... + 24468796.

Almost surely, 2^1272376066 is an apocalyptic number.

1272376066 is a deficient number, since it is larger than the sum of its proper divisors (783000698).

1272376066 is a wasteful number, since it uses less digits than its factorization.

1272376066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48937556.

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 1272376066 is about 35670.3807941547. The cubic root of 1272376066 is about 1083.6070712019.

The spelling of 1272376066 in words is "one billion, two hundred seventy-two million, three hundred seventy-six thousand, sixty-six".