405198207655 has 16 divisors (see below), whose sum is σ = 486585688320. Its totient is φ = 323926780672.

The previous prime is 405198207619. The next prime is 405198207769. The reversal of 405198207655 is 556702891504.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 405198207655 - 2⁷ = 405198207527 is a prime.

It is a super-3 number, since 3×405198207655³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

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, 67205181 + ... + 67211209.

It is an arithmetic number, because the mean of its divisors is an integer number (30411605520).

Almost surely, 2^405198207655 is an apocalyptic number.

405198207655 is a deficient number, since it is larger than the sum of its proper divisors (81387480665).

405198207655 is a wasteful number, since it uses less digits than its factorization.

405198207655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13418.

The product of its (nonzero) digits is 3024000, while the sum is 52.

The spelling of 405198207655 in words is "four hundred five billion, one hundred ninety-eight million, two hundred seven thousand, six hundred fifty-five".