40205400253533 has 40 divisors (see below), whose sum is σ = 61207186722528. Its totient is φ = 26403545569104.

The previous prime is 40205400253517. The next prime is 40205400253541. The reversal of 40205400253533 is 33535200450204.

40205400253533 is a `hidden beast` number, since 4 + 0 + 20 + 54 + 0 + 0 + 2 + 53 + 533 = 666.

It is not a de Polignac number, because 40205400253533 - 2⁴ = 40205400253517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40205400953533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 13924866 + ... + 16562387.

Almost surely, 2^{40205400253533} is an apocalyptic number.

It is an amenable number.

40205400253533 is a deficient number, since it is larger than the sum of its proper divisors (21001786468995).

40205400253533 is an frugal number, since it uses more digits than its factorization.

40205400253533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30487347 (or 30487323 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 36.

The spelling of 40205400253533 in words is "forty trillion, two hundred five billion, four hundred million, two hundred fifty-three thousand, five hundred thirty-three".