401001466642 has 32 divisors (see below), whose sum is σ = 716116515840. Its totient is φ = 164788136640.

The previous prime is 401001466609. The next prime is 401001466643. The reversal of 401001466642 is 246664100104.

It is a junction number, because it is equal to n+sod(n) for n = 401001466598 and 401001466607.

It is not an unprimeable number, because it can be changed into a prime (401001466643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4191073 + ... + 4285684.

It is an arithmetic number, because the mean of its divisors is an integer number (22378641120).

Almost surely, 2^401001466642 is an apocalyptic number.

401001466642 is a deficient number, since it is larger than the sum of its proper divisors (315115049198).

401001466642 is a wasteful number, since it uses less digits than its factorization.

401001466642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8476906.

The product of its (nonzero) digits is 27648, while the sum is 34.

Adding to 401001466642 its reverse (246664100104), we get a palindrome (647665566746).

The spelling of 401001466642 in words is "four hundred one billion, one million, four hundred sixty-six thousand, six hundred forty-two".