401155504415 has 4 divisors (see below), whose sum is σ = 481386605304. Its totient is φ = 320924403528.

The previous prime is 401155504391. The next prime is 401155504487. The reversal of 401155504415 is 514405551104.

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

It is a cyclic number.

It is not a de Polignac number, because 401155504415 - 2⁸ = 401155504159 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, 40115550437 + ... + 40115550446.

It is an arithmetic number, because the mean of its divisors is an integer number (120346651326).

Almost surely, 2^401155504415 is an apocalyptic number.

401155504415 is a deficient number, since it is larger than the sum of its proper divisors (80231100889).

401155504415 is an equidigital number, since it uses as much as digits as its factorization.

401155504415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80231100888.

The product of its (nonzero) digits is 40000, while the sum is 35.

The spelling of 401155504415 in words is "four hundred one billion, one hundred fifty-five million, five hundred four thousand, four hundred fifteen".