40235665620663 has 96 divisors (see below), whose sum is σ = 63429071127552. Its totient is φ = 24479781580800.

The previous prime is 40235665620499. The next prime is 40235665620677. The reversal of 40235665620663 is 36602656653204.

40235665620663 is a `hidden beast` number, since 4 + 0 + 2 + 3 + 5 + 6 + 6 + 5 + 620 + 6 + 6 + 3 = 666.

40235665620663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40235665620663 - 2²⁴ = 40235648843447 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40235665620263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2219155108 + ... + 2219173238.

It is an arithmetic number, because the mean of its divisors is an integer number (660719490912).

Almost surely, 2^{40235665620663} is an apocalyptic number.

40235665620663 is a deficient number, since it is larger than the sum of its proper divisors (23193405506889).

40235665620663 is a wasteful number, since it uses less digits than its factorization.

40235665620663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21045 (or 21042 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 54.

The spelling of 40235665620663 in words is "forty trillion, two hundred thirty-five billion, six hundred sixty-five million, six hundred twenty thousand, six hundred sixty-three".