401041656064 has 72 divisors (see below), whose sum is σ = 915037643520. Its totient is φ = 171844681728.

The previous prime is 401041656011. The next prime is 401041656073. The reversal of 401041656064 is 460656140104.

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, 12282192 + ... + 12314800.

It is an arithmetic number, because the mean of its divisors is an integer number (12708856160).

Almost surely, 2^401041656064 is an apocalyptic number.

It is an amenable number.

401041656064 is an abundant number, since it is smaller than the sum of its proper divisors (513995987456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401041656064 is an equidigital number, since it uses as much as digits as its factorization.

401041656064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39495 (or 39481 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

Adding to 401041656064 its reverse (460656140104), we get a palindrome (861697796168).

The spelling of 401041656064 in words is "four hundred one billion, forty-one million, six hundred fifty-six thousand, sixty-four".