5166511155 has 64 divisors (see below), whose sum is σ = 9963072000. Its totient is φ = 2525095296.

The previous prime is 5166511151. The next prime is 5166511159. The reversal of 5166511155 is 5511156615.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (5166511151) and next prime (5166511159).

It is not a de Polignac number, because 5166511155 - 2² = 5166511151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5166511151) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 233356 + ... + 254534.

It is an arithmetic number, because the mean of its divisors is an integer number (155673000).

Almost surely, 2^5166511155 is an apocalyptic number.

5166511155 is a deficient number, since it is larger than the sum of its proper divisors (4796560845).

5166511155 is a wasteful number, since it uses less digits than its factorization.

5166511155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21345 (or 21339 counting only the distinct ones).

The product of its digits is 22500, while the sum is 36.

The square root of 5166511155 is about 71878.4470825574. The cubic root of 5166511155 is about 1728.7510509543.

The spelling of 5166511155 in words is "five billion, one hundred sixty-six million, five hundred eleven thousand, one hundred fifty-five".