65570480 has 40 divisors (see below), whose sum is σ = 156177504. Its totient is φ = 25587200.

The previous prime is 65570467. The next prime is 65570503. The reversal of 65570480 is 8407556.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 65570480.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6716 + ... + 13275.

Almost surely, 2^65570480 is an apocalyptic number.

It is an amenable number.

65570480 is an abundant number, since it is smaller than the sum of its proper divisors (90607024).

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

65570480 is a wasteful number, since it uses less digits than its factorization.

65570480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20045 (or 20039 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 65570480 is about 8097.5601263591. The cubic root of 65570480 is about 403.2454300767.

The spelling of 65570480 in words is "sixty-five million, five hundred seventy thousand, four hundred eighty".