5515537161 has 16 divisors (see below), whose sum is σ = 7402187520. Its totient is φ = 3652997760.

The previous prime is 5515537129. The next prime is 5515537193. The reversal of 5515537161 is 1617355155.

It is an interprime number because it is at equal distance from previous prime (5515537129) and next prime (5515537193).

It is not a de Polignac number, because 5515537161 - 2⁵ = 5515537129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5515537361) 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, 594325 + ... + 603533.

It is an arithmetic number, because the mean of its divisors is an integer number (462636720).

Almost surely, 2^5515537161 is an apocalyptic number.

It is an amenable number.

5515537161 is a deficient number, since it is larger than the sum of its proper divisors (1886650359).

5515537161 is a wasteful number, since it uses less digits than its factorization.

5515537161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10496.

The product of its digits is 78750, while the sum is 39.

The square root of 5515537161 is about 74266.6625142129. The cubic root of 5515537161 is about 1766.8347743477.

The spelling of 5515537161 in words is "five billion, five hundred fifteen million, five hundred thirty-seven thousand, one hundred sixty-one".