40637226507660 has 144 divisors (see below), whose sum is σ = 129825618773760. Its totient is φ = 10260576305280.

The previous prime is 40637226507601. The next prime is 40637226507751. The reversal of 40637226507660 is 6670562273604.

40637226507660 is a `hidden beast` number, since 4 + 0 + 6 + 3 + 72 + 2 + 6 + 507 + 6 + 60 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 40637226507597 and 40637226507606.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2913049 + ... + 9474191.

It is an arithmetic number, because the mean of its divisors is an integer number (901566797040).

Almost surely, 2^{40637226507660} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40637226507660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64912809386880).

40637226507660 is an abundant number, since it is smaller than the sum of its proper divisors (89188392266100).

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

40637226507660 is a wasteful number, since it uses less digits than its factorization.

40637226507660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6562988 (or 6562983 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 54.

The spelling of 40637226507660 in words is "forty trillion, six hundred thirty-seven billion, two hundred twenty-six million, five hundred seven thousand, six hundred sixty".