1265001416 has 32 divisors (see below), whose sum is σ = 2870173440. Its totient is φ = 510252288.

The previous prime is 1265001389. The next prime is 1265001421. The reversal of 1265001416 is 6141005621.

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, 663440 + ... + 665343.

It is an arithmetic number, because the mean of its divisors is an integer number (89692920).

Almost surely, 2^1265001416 is an apocalyptic number.

It is an amenable number.

1265001416 is an abundant number, since it is smaller than the sum of its proper divisors (1605172024).

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

1265001416 is a wasteful number, since it uses less digits than its factorization.

1265001416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328813 (or 1328809 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 1265001416 is about 35566.8583937350. The cubic root of 1265001416 is about 1081.5094964457.

The spelling of 1265001416 in words is "one billion, two hundred sixty-five million, one thousand, four hundred sixteen".