401651737075641 has 48 divisors (see below), whose sum is σ = 582741279700800. Its totient is φ = 245962028632320.

The previous prime is 401651737075627. The next prime is 401651737075679. The reversal of 401651737075641 is 146570737156104.

It is a happy number.

It is not a de Polignac number, because 401651737075641 - 2¹⁰ = 401651737074617 is a prime.

It is a super-2 number, since 2×401651737075641² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401651737074641) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 82368510 + ... + 87108408.

It is an arithmetic number, because the mean of its divisors is an integer number (12140443327100).

Almost surely, 2^{401651737075641} is an apocalyptic number.

It is an amenable number.

401651737075641 is a deficient number, since it is larger than the sum of its proper divisors (181089542625159).

401651737075641 is a wasteful number, since it uses less digits than its factorization.

401651737075641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4740746 (or 4740733 counting only the distinct ones).

The product of its (nonzero) digits is 14817600, while the sum is 57.

The spelling of 401651737075641 in words is "four hundred one trillion, six hundred fifty-one billion, seven hundred thirty-seven million, seventy-five thousand, six hundred forty-one".