40660077824 has 36 divisors (see below), whose sum is σ = 85432986240. Its totient is φ = 19260034560.

The previous prime is 40660077779. The next prime is 40660077827. The reversal of 40660077824 is 42877006604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40660077827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4174832 + ... + 4184559.

Almost surely, 2^40660077824 is an apocalyptic number.

It is an amenable number.

40660077824 is an abundant number, since it is smaller than the sum of its proper divisors (44772908416).

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

40660077824 is an equidigital number, since it uses as much as digits as its factorization.

40660077824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8359426 (or 8359412 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 44.

The spelling of 40660077824 in words is "forty billion, six hundred sixty million, seventy-seven thousand, eight hundred twenty-four".