40205321416 has 32 divisors (see below), whose sum is σ = 81198827640. Its totient is φ = 18552872448.

The previous prime is 40205321407. The next prime is 40205321423. The reversal of 40205321416 is 61412350204.

It can be written as a sum of positive squares in 4 ways, for example, as 38163185316 + 2042136100 = 195354^2 + 45190^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 580510 + ... + 646066.

Almost surely, 2^40205321416 is an apocalyptic number.

It is an amenable number.

40205321416 is an abundant number, since it is smaller than the sum of its proper divisors (40993506224).

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

40205321416 is a wasteful number, since it uses less digits than its factorization.

40205321416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71473 (or 71469 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The spelling of 40205321416 in words is "forty billion, two hundred five million, three hundred twenty-one thousand, four hundred sixteen".