400310554155 has 16 divisors (see below), whose sum is σ = 647693483040. Its totient is φ = 211100096768.

The previous prime is 400310554121. The next prime is 400310554181. The reversal of 400310554155 is 551455013004.

It is a cyclic number.

It is not a de Polignac number, because 400310554155 - 2¹⁰ = 400310553131 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149927712 + ... + 149930381.

It is an arithmetic number, because the mean of its divisors is an integer number (40480842690).

Almost surely, 2^400310554155 is an apocalyptic number.

400310554155 is a deficient number, since it is larger than the sum of its proper divisors (247382928885).

400310554155 is a wasteful number, since it uses less digits than its factorization.

400310554155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299858190.

The product of its (nonzero) digits is 30000, while the sum is 33.

Adding to 400310554155 its reverse (551455013004), we get a palindrome (951765567159).

The spelling of 400310554155 in words is "four hundred billion, three hundred ten million, five hundred fifty-four thousand, one hundred fifty-five".