6533747155 has 16 divisors (see below), whose sum is σ = 8445304224. Its totient is φ = 4823953920.

The previous prime is 6533747153. The next prime is 6533747161. The reversal of 6533747155 is 5517473356.

It is not a de Polignac number, because 6533747155 - 2¹ = 6533747153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6533747153) 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, 585387 + ... + 596443.

It is an arithmetic number, because the mean of its divisors is an integer number (527831514).

Almost surely, 2^6533747155 is an apocalyptic number.

6533747155 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

6533747155 is a deficient number, since it is larger than the sum of its proper divisors (1911557069).

6533747155 is a wasteful number, since it uses less digits than its factorization.

6533747155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20166.

The product of its digits is 1323000, while the sum is 46.

The square root of 6533747155 is about 80831.5975036990. The cubic root of 6533747155 is about 1869.4797903832.

It can be divided in two parts, 65 and 33747155, that added together give a triangular number (33747220 = T₈₂₁₅).

The spelling of 6533747155 in words is "six billion, five hundred thirty-three million, seven hundred forty-seven thousand, one hundred fifty-five".