8145611551 has 16 divisors (see below), whose sum is σ = 10217887488. Its totient is φ = 6308280000.

The previous prime is 8145611459. The next prime is 8145611587. The reversal of 8145611551 is 1551165418.

It is not a de Polignac number, because 8145611551 - 2¹¹ = 8145609503 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8145611551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8145611351) 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 15 ways as a sum of consecutive naturals, for example, 311950 + ... + 337051.

It is an arithmetic number, because the mean of its divisors is an integer number (638617968).

Almost surely, 2^8145611551 is an apocalyptic number.

8145611551 is a deficient number, since it is larger than the sum of its proper divisors (2072275937).

8145611551 is a wasteful number, since it uses less digits than its factorization.

8145611551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649182.

The product of its digits is 24000, while the sum is 37.

The square root of 8145611551 is about 90253.0417825350. The cubic root of 8145611551 is about 2012.0614108784.

Adding to 8145611551 its reverse (1551165418), we get a palindrome (9696776969).

The spelling of 8145611551 in words is "eight billion, one hundred forty-five million, six hundred eleven thousand, five hundred fifty-one".