65472018 has 16 divisors (see below), whose sum is σ = 134483520. Its totient is φ = 21234096.

The previous prime is 65471963. The next prime is 65472019. The reversal of 65472018 is 81027456.

It is a self number, because there is not a number n which added to its sum of digits gives 65472018.

It is not an unprimeable number, because it can be changed into a prime (65472019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147238 + ... + 147681.

It is an arithmetic number, because the mean of its divisors is an integer number (8405220).

Almost surely, 2^65472018 is an apocalyptic number.

65472018 is an abundant number, since it is smaller than the sum of its proper divisors (69011502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65472018 is a wasteful number, since it uses less digits than its factorization.

65472018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294961.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 65472018 is about 8091.4781097152. The cubic root of 65472018 is about 403.0434883810.

The spelling of 65472018 in words is "sixty-five million, four hundred seventy-two thousand, eighteen".