40212154055 has 4 divisors (see below), whose sum is σ = 48254584872. Its totient is φ = 32169723240.

The previous prime is 40212154027. The next prime is 40212154061. The reversal of 40212154055 is 55045121204.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 40212154055 - 2³⁴ = 23032284871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4021215401 + ... + 4021215410.

It is an arithmetic number, because the mean of its divisors is an integer number (12063646218).

Almost surely, 2^40212154055 is an apocalyptic number.

40212154055 is a deficient number, since it is larger than the sum of its proper divisors (8042430817).

40212154055 is an equidigital number, since it uses as much as digits as its factorization.

40212154055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8042430816.

The product of its (nonzero) digits is 8000, while the sum is 29.

Adding to 40212154055 its reverse (55045121204), we get a palindrome (95257275259).

The spelling of 40212154055 in words is "forty billion, two hundred twelve million, one hundred fifty-four thousand, fifty-five".