215455022405 has 32 divisors (see below), whose sum is σ = 296562090240. Its totient is φ = 147200993280.

The previous prime is 215455022383. The next prime is 215455022407. The reversal of 215455022405 is 504220554512.

215455022405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 215455022405 - 2²² = 215450828101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215455022407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12900110 + ... + 12916800.

It is an arithmetic number, because the mean of its divisors is an integer number (9267565320).

Almost surely, 2^215455022405 is an apocalyptic number.

It is an amenable number.

215455022405 is a deficient number, since it is larger than the sum of its proper divisors (81107067835).

215455022405 is a wasteful number, since it uses less digits than its factorization.

215455022405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18029.

The product of its (nonzero) digits is 80000, while the sum is 35.

Adding to 215455022405 its reverse (504220554512), we get a palindrome (719675576917).

The spelling of 215455022405 in words is "two hundred fifteen billion, four hundred fifty-five million, twenty-two thousand, four hundred five".