640401410336541 has 32 divisors (see below), whose sum is σ = 992360496046080. Its totient is φ = 359773601178816.

The previous prime is 640401410336533. The next prime is 640401410336543. The reversal of 640401410336541 is 145633014104046.

It is not a de Polignac number, because 640401410336541 - 2³ = 640401410336533 is a prime.

It is a super-2 number, since 2×640401410336541² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 640401410336493 and 640401410336502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (640401410336543) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 446389741 + ... + 447822066.

It is an arithmetic number, because the mean of its divisors is an integer number (31011265501440).

Almost surely, 2^{640401410336541} is an apocalyptic number.

It is an amenable number.

640401410336541 is a deficient number, since it is larger than the sum of its proper divisors (351959085709539).

640401410336541 is a wasteful number, since it uses less digits than its factorization.

640401410336541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894212393.

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 640401410336541 in words is "six hundred forty trillion, four hundred one billion, four hundred ten million, three hundred thirty-six thousand, five hundred forty-one".