6551164401 has 16 divisors (see below), whose sum is σ = 8812057344. Its totient is φ = 4329022464.

The previous prime is 6551164363. The next prime is 6551164441. The reversal of 6551164401 is 1044611556.

It is not a de Polignac number, because 6551164401 - 2¹⁵ = 6551131633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6551164441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139960 + ... + 180806.

It is an arithmetic number, because the mean of its divisors is an integer number (550753584).

Almost surely, 2^6551164401 is an apocalyptic number.

It is an amenable number.

6551164401 is a deficient number, since it is larger than the sum of its proper divisors (2260892943).

6551164401 is a wasteful number, since it uses less digits than its factorization.

6551164401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41320.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 6551164401 is about 80939.2636549160. The cubic root of 6551164401 is about 1871.1394964306.

Adding to 6551164401 its reverse (1044611556), we get a palindrome (7595775957).

The spelling of 6551164401 in words is "six billion, five hundred fifty-one million, one hundred sixty-four thousand, four hundred one".