660062660440 has 64 divisors (see below), whose sum is σ = 1572684141600. Its totient is φ = 248465430528.

The previous prime is 660062660291. The next prime is 660062660483. The reversal of 660062660440 is 44066260066.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 660062660393 and 660062660402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6365731 + ... + 6468589.

Almost surely, 2^660062660440 is an apocalyptic number.

It is an amenable number.

660062660440 is an abundant number, since it is smaller than the sum of its proper divisors (912621481160).

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

660062660440 is a wasteful number, since it uses less digits than its factorization.

660062660440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112324 (or 112320 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 40.

The spelling of 660062660440 in words is "six hundred sixty billion, sixty-two million, six hundred sixty thousand, four hundred forty".