400420205533355 has 8 divisors (see below), whose sum is σ = 549147710445792. Its totient is φ = 274573855222848.

The previous prime is 400420205533319. The next prime is 400420205533373. The reversal of 400420205533355 is 553335502024004.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 400420205533355 - 2¹⁸ = 400420205271211 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5720288650442 + ... + 5720288650511.

It is an arithmetic number, because the mean of its divisors is an integer number (68643463805724).

Almost surely, 2^{400420205533355} is an apocalyptic number.

400420205533355 is a deficient number, since it is larger than the sum of its proper divisors (148727504912437).

400420205533355 is a wasteful number, since it uses less digits than its factorization.

400420205533355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11440577300965.

The product of its (nonzero) digits is 1080000, while the sum is 41.

Adding to 400420205533355 its reverse (553335502024004), we get a palindrome (953755707557359).

The spelling of 400420205533355 in words is "four hundred trillion, four hundred twenty billion, two hundred five million, five hundred thirty-three thousand, three hundred fifty-five".