40213165636 has 48 divisors (see below), whose sum is σ = 83244672000. Its totient is φ = 16630927488.

The previous prime is 40213165613. The next prime is 40213165639. The reversal of 40213165636 is 63656131204.

It is a junction number, because it is equal to n+sod(n) for n = 40213165595 and 40213165604.

It is not an unprimeable number, because it can be changed into a prime (40213165639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1609165 + ... + 1633963.

It is an arithmetic number, because the mean of its divisors is an integer number (1734264000).

Almost surely, 2^40213165636 is an apocalyptic number.

It is an amenable number.

40213165636 is an abundant number, since it is smaller than the sum of its proper divisors (43031506364).

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

40213165636 is a wasteful number, since it uses less digits than its factorization.

40213165636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26836 (or 26834 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 37.

The spelling of 40213165636 in words is "forty billion, two hundred thirteen million, one hundred sixty-five thousand, six hundred thirty-six".