6555551111151 has 16 divisors (see below), whose sum is σ = 9989995701504. Its totient is φ = 3745810024704.

The previous prime is 6555551111107. The next prime is 6555551111189. The reversal of 6555551111151 is 1511111555556.

It is a happy number.

It is not a de Polignac number, because 6555551111151 - 2¹⁰ = 6555551110127 is a prime.

It is a super-2 number, since 2×6555551111151² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6555551110151) 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, 8764770 + ... + 9483263.

It is an arithmetic number, because the mean of its divisors is an integer number (624374731344).

Almost surely, 2^{6555551111151} is an apocalyptic number.

6555551111151 is a deficient number, since it is larger than the sum of its proper divisors (3434444590353).

6555551111151 is a wasteful number, since it uses less digits than its factorization.

6555551111151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18265150.

The product of its digits is 93750, while the sum is 42.

The spelling of 6555551111151 in words is "six trillion, five hundred fifty-five billion, five hundred fifty-one million, one hundred eleven thousand, one hundred fifty-one".