401566384351 has 8 divisors (see below), whose sum is σ = 449912214864. Its totient is φ = 355193853120.

The previous prime is 401566384339. The next prime is 401566384363. The reversal of 401566384351 is 153483665104.

It is an interprime number because it is at equal distance from previous prime (401566384339) and next prime (401566384363).

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 401566384351 - 2⁵ = 401566384319 is a prime.

It is a super-2 number, since 2×401566384351² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401566384151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 493324390 + ... + 493325203.

It is an arithmetic number, because the mean of its divisors is an integer number (56239026858).

Almost surely, 2^401566384351 is an apocalyptic number.

401566384351 is a deficient number, since it is larger than the sum of its proper divisors (48345830513).

401566384351 is a wasteful number, since it uses less digits than its factorization.

401566384351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986649641.

The product of its (nonzero) digits is 1036800, while the sum is 46.

It can be divided in two parts, 4015663 and 84351, that added together give a palindrome (4100014).

The spelling of 401566384351 in words is "four hundred one billion, five hundred sixty-six million, three hundred eighty-four thousand, three hundred fifty-one".