40066640824 has 16 divisors (see below), whose sum is σ = 85857087600. Its totient is φ = 17171417472.

The previous prime is 40066640821. The next prime is 40066640827. The reversal of 40066640824 is 42804666004.

It is an interprime number because it is at equal distance from previous prime (40066640821) and next prime (40066640827).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40066640821) 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, 357737809 + ... + 357737920.

It is an arithmetic number, because the mean of its divisors is an integer number (5366067975).

Almost surely, 2^40066640824 is an apocalyptic number.

It is an amenable number.

40066640824 is an abundant number, since it is smaller than the sum of its proper divisors (45790446776).

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

40066640824 is a wasteful number, since it uses less digits than its factorization.

40066640824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715475742 (or 715475738 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 40.

The spelling of 40066640824 in words is "forty billion, sixty-six million, six hundred forty thousand, eight hundred twenty-four".