401226642455 has 4 divisors (see below), whose sum is σ = 481471970952. Its totient is φ = 320981313960.

The previous prime is 401226642437. The next prime is 401226642463. The reversal of 401226642455 is 554246622104.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 401226642455 - 2⁶ = 401226642391 is a prime.

It is a Duffinian 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, 40122664241 + ... + 40122664250.

It is an arithmetic number, because the mean of its divisors is an integer number (120367992738).

Almost surely, 2^401226642455 is an apocalyptic number.

401226642455 is a deficient number, since it is larger than the sum of its proper divisors (80245328497).

401226642455 is an equidigital number, since it uses as much as digits as its factorization.

401226642455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80245328496.

The product of its (nonzero) digits is 460800, while the sum is 41.

The spelling of 401226642455 in words is "four hundred one billion, two hundred twenty-six million, six hundred forty-two thousand, four hundred fifty-five".