8165260551 has 16 divisors (see below), whose sum is σ = 12451355648. Its totient is φ = 4662468000.

The previous prime is 8165260511. The next prime is 8165260639. The reversal of 8165260551 is 1550625618.

It is not a de Polignac number, because 8165260551 - 2⁷ = 8165260423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8165260511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111775 + ... + 169776.

It is an arithmetic number, because the mean of its divisors is an integer number (778209728).

Almost surely, 2^8165260551 is an apocalyptic number.

8165260551 is a deficient number, since it is larger than the sum of its proper divisors (4286095097).

8165260551 is a wasteful number, since it uses less digits than its factorization.

8165260551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282942.

The product of its (nonzero) digits is 72000, while the sum is 39.

The square root of 8165260551 is about 90361.8312729440. The cubic root of 8165260551 is about 2013.6779560951.

The spelling of 8165260551 in words is "eight billion, one hundred sixty-five million, two hundred sixty thousand, five hundred fifty-one".