401645011233634 has 48 divisors (see below), whose sum is σ = 707977499386752. Its totient is φ = 167402928189312.

The previous prime is 401645011233629. The next prime is 401645011233673. The reversal of 401645011233634 is 436332110546104.

It is a super-2 number, since 2×401645011233634² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36054579 + ... + 45860905.

It is an arithmetic number, because the mean of its divisors is an integer number (14749531237224).

Almost surely, 2^{401645011233634} is an apocalyptic number.

401645011233634 is a deficient number, since it is larger than the sum of its proper divisors (306332488153118).

401645011233634 is a wasteful number, since it uses less digits than its factorization.

401645011233634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9808547 (or 9808510 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 43.

Adding to 401645011233634 its reverse (436332110546104), we get a palindrome (837977121779738).

The spelling of 401645011233634 in words is "four hundred one trillion, six hundred forty-five billion, eleven million, two hundred thirty-three thousand, six hundred thirty-four".