40205561051 has 8 divisors (see below), whose sum is σ = 42816669984. Its totient is φ = 37621793920.

The previous prime is 40205561029. The next prime is 40205561069. The reversal of 40205561051 is 15016550204.

It is a happy number.

40205561051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40205561051 - 2¹⁰ = 40205560027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40205561651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6832415 + ... + 6838296.

It is an arithmetic number, because the mean of its divisors is an integer number (5352083748).

Almost surely, 2^40205561051 is an apocalyptic number.

40205561051 is a deficient number, since it is larger than the sum of its proper divisors (2611108933).

40205561051 is a wasteful number, since it uses less digits than its factorization.

40205561051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13670901.

The product of its (nonzero) digits is 6000, while the sum is 29.

The spelling of 40205561051 in words is "forty billion, two hundred five million, five hundred sixty-one thousand, fifty-one".