40231201555 has 4 divisors (see below), whose sum is σ = 48277441872. Its totient is φ = 32184961240.

The previous prime is 40231201547. The next prime is 40231201567. The reversal of 40231201555 is 55510213204.

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

It is not a de Polignac number, because 40231201555 - 2³ = 40231201547 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4023120151 + ... + 4023120160.

It is an arithmetic number, because the mean of its divisors is an integer number (12069360468).

Almost surely, 2^40231201555 is an apocalyptic number.

40231201555 is a deficient number, since it is larger than the sum of its proper divisors (8046240317).

40231201555 is an equidigital number, since it uses as much as digits as its factorization.

40231201555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8046240316.

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 40231201555 its reverse (55510213204), we get a palindrome (95741414759).

The spelling of 40231201555 in words is "forty billion, two hundred thirty-one million, two hundred one thousand, five hundred fifty-five".