15091061265 has 128 divisors (see below), whose sum is σ = 32006016000. Its totient is φ = 6602618880.

The previous prime is 15091061263. The next prime is 15091061281. The reversal of 15091061265 is 56216019051.

15091061265 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 15091061265 - 2¹ = 15091061263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15091061263) by changing a digit.

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 127 ways as a sum of consecutive naturals, for example, 2049811 + ... + 2057159.

It is an arithmetic number, because the mean of its divisors is an integer number (250047000).

Almost surely, 2^15091061265 is an apocalyptic number.

15091061265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15091061265 is an abundant number, since it is smaller than the sum of its proper divisors (16914954735).

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

15091061265 is a wasteful number, since it uses less digits than its factorization.

15091061265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7464 (or 7458 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 36.

The spelling of 15091061265 in words is "fifteen billion, ninety-one million, sixty-one thousand, two hundred sixty-five".