7266255615 has 12 divisors (see below), whose sum is σ = 12594843144. Its totient is φ = 3875336304.

The previous prime is 7266255599. The next prime is 7266255637. The reversal of 7266255615 is 5165526627.

7266255615 is a `hidden beast` number, since 7 + 2 + 6 + 6 + 25 + 5 + 615 = 666.

It is not a de Polignac number, because 7266255615 - 2⁴ = 7266255599 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 161472347 = 7266255615 / (7 + 2 + 6 + 6 + 2 + 5 + 5 + 6 + 1 + 5).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80736129 + ... + 80736218.

It is an arithmetic number, because the mean of its divisors is an integer number (1049570262).

Almost surely, 2^7266255615 is an apocalyptic number.

7266255615 is a deficient number, since it is larger than the sum of its proper divisors (5328587529).

7266255615 is a wasteful number, since it uses less digits than its factorization.

7266255615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161472358 (or 161472355 counting only the distinct ones).

The product of its digits is 756000, while the sum is 45.

The square root of 7266255615 is about 85242.3346407171. The cubic root of 7266255615 is about 1936.8837573446.

The spelling of 7266255615 in words is "seven billion, two hundred sixty-six million, two hundred fifty-five thousand, six hundred fifteen".