60643394040 has 32 divisors (see below), whose sum is σ = 181930182480. Its totient is φ = 16171571712.

The previous prime is 60643394029. The next prime is 60643394047. The reversal of 60643394040 is 4049334606.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 60643394040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60643394047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252680689 + ... + 252680928.

Almost surely, 2^60643394040 is an apocalyptic number.

60643394040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

60643394040 is an abundant number, since it is smaller than the sum of its proper divisors (121286788440).

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

60643394040 is a wasteful number, since it uses less digits than its factorization.

60643394040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505361631 (or 505361627 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 39.

The spelling of 60643394040 in words is "sixty billion, six hundred forty-three million, three hundred ninety-four thousand, forty".