1265567070 has 16 divisors (see below), whose sum is σ = 3037361040. Its totient is φ = 337484544.

The previous prime is 1265567041. The next prime is 1265567081. The reversal of 1265567070 is 707655621.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21092755 + ... + 21092814.

It is an arithmetic number, because the mean of its divisors is an integer number (189835065).

Almost surely, 2^1265567070 is an apocalyptic number.

1265567070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1265567070 is an abundant number, since it is smaller than the sum of its proper divisors (1771793970).

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

1265567070 is a wasteful number, since it uses less digits than its factorization.

1265567070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42185579.

The product of its (nonzero) digits is 88200, while the sum is 39.

The square root of 1265567070 is about 35574.8094864892. The cubic root of 1265567070 is about 1081.6706738703.

The spelling of 1265567070 in words is "one billion, two hundred sixty-five million, five hundred sixty-seven thousand, seventy".