5166561155 has 16 divisors (see below), whose sum is σ = 7250352384. Its totient is φ = 3460393440.

The previous prime is 5166561131. The next prime is 5166561163. The reversal of 5166561155 is 5511656615.

It is not a de Polignac number, because 5166561155 - 2¹² = 5166557059 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1714961 + ... + 1717970.

It is an arithmetic number, because the mean of its divisors is an integer number (453147024).

Almost surely, 2^5166561155 is an apocalyptic number.

5166561155 is a deficient number, since it is larger than the sum of its proper divisors (2083791229).

5166561155 is a wasteful number, since it uses less digits than its factorization.

5166561155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3432986.

The product of its digits is 135000, while the sum is 41.

The square root of 5166561155 is about 71878.7948911221. The cubic root of 5166561155 is about 1728.7566277205.

The spelling of 5166561155 in words is "five billion, one hundred sixty-six million, five hundred sixty-one thousand, one hundred fifty-five".