65570005668 has 24 divisors (see below), whose sum is σ = 153485495968. Its totient is φ = 21786837696.

The previous prime is 65570005661. The next prime is 65570005673. The reversal of 65570005668 is 86650007556.

It is not an unprimeable number, because it can be changed into a prime (65570005661) 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, 8724946 + ... + 8732457.

Almost surely, 2^65570005668 is an apocalyptic number.

It is an amenable number.

65570005668 is an abundant number, since it is smaller than the sum of its proper divisors (87915490300).

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

65570005668 is a wasteful number, since it uses less digits than its factorization.

65570005668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17457723 (or 17457721 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 48.

The spelling of 65570005668 in words is "sixty-five billion, five hundred seventy million, five thousand, six hundred sixty-eight".