40021535355 has 16 divisors (see below), whose sum is σ = 64388242464. Its totient is φ = 21226890240.

The previous prime is 40021535317. The next prime is 40021535413. The reversal of 40021535355 is 55353512004.

It is a happy number.

40021535355 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-40021535355 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7367734 + ... + 7373163.

It is an arithmetic number, because the mean of its divisors is an integer number (4024265154).

Almost surely, 2^40021535355 is an apocalyptic number.

40021535355 is a deficient number, since it is larger than the sum of its proper divisors (24366707109).

40021535355 is a wasteful number, since it uses less digits than its factorization.

40021535355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14741086.

The product of its (nonzero) digits is 45000, while the sum is 33.

The spelling of 40021535355 in words is "forty billion, twenty-one million, five hundred thirty-five thousand, three hundred fifty-five".