40566005451 has 12 divisors (see below), whose sum is σ = 60485513920. Its totient is φ = 26171616240.

The previous prime is 40566005449. The next prime is 40566005479. The reversal of 40566005451 is 15450066504.

40566005451 is a `hidden beast` number, since 4 + 0 + 5 + 6 + 600 + 5 + 45 + 1 = 666.

It is not a de Polignac number, because 40566005451 - 2¹ = 40566005449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40566005411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72698656 + ... + 72699213.

Almost surely, 2^40566005451 is an apocalyptic number.

40566005451 is a deficient number, since it is larger than the sum of its proper divisors (19919508469).

40566005451 is a wasteful number, since it uses less digits than its factorization.

40566005451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145397906 (or 145397903 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 40566005451 in words is "forty billion, five hundred sixty-six million, five thousand, four hundred fifty-one".