400011215004152 has 16 divisors (see below), whose sum is σ = 750030321787440. Its totient is φ = 200003129194176.

The previous prime is 400011215004047. The next prime is 400011215004173. The reversal of 400011215004152 is 251400512110004.

It is a happy number.

It is a congruent 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, 309102428 + ... + 310393835.

It is an arithmetic number, because the mean of its divisors is an integer number (46876895111715).

Almost surely, 2^{400011215004152} is an apocalyptic number.

It is an amenable number.

400011215004152 is a deficient number, since it is larger than the sum of its proper divisors (350019106783288).

400011215004152 is a wasteful number, since it uses less digits than its factorization.

400011215004152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619576982 (or 619576978 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 400011215004152 its reverse (251400512110004), we get a palindrome (651411727114156).

The spelling of 400011215004152 in words is "four hundred trillion, eleven billion, two hundred fifteen million, four thousand, one hundred fifty-two".