1265006616 has 32 divisors (see below), whose sum is σ = 3247992240. Its totient is φ = 410272128.

The previous prime is 1265006563. The next prime is 1265006627. The reversal of 1265006616 is 6166005621.

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, 711391 + ... + 713166.

Almost surely, 2^1265006616 is an apocalyptic number.

It is an amenable number.

1265006616 is an abundant number, since it is smaller than the sum of its proper divisors (1982985624).

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

1265006616 is a wasteful number, since it uses less digits than its factorization.

1265006616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424603 (or 1424599 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 1265006616 is about 35566.9314954214. The cubic root of 1265006616 is about 1081.5109783523.

The spelling of 1265006616 in words is "one billion, two hundred sixty-five million, six thousand, six hundred sixteen".