618470161 has 12 divisors (see below), whose sum is σ = 660763008. Its totient is φ = 577782744.

The previous prime is 618470143. The next prime is 618470173. The reversal of 618470161 is 161074816.

It is not a de Polignac number, because 618470161 - 2⁵ = 618470129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (618470141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35256 + ... + 49798.

It is an arithmetic number, because the mean of its divisors is an integer number (55063584).

Almost surely, 2^618470161 is an apocalyptic number.

It is an amenable number.

618470161 is a deficient number, since it is larger than the sum of its proper divisors (42292847).

618470161 is a wasteful number, since it uses less digits than its factorization.

618470161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14652 (or 14609 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 618470161 is about 24869.0603159830. The cubic root of 618470161 is about 851.9999784177. Note that the first 4 decimals are identical.

The spelling of 618470161 in words is "six hundred eighteen million, four hundred seventy thousand, one hundred sixty-one".