640361016411 has 128 divisors (see below), whose sum is σ = 983387381760. Its totient is φ = 368492544000.

The previous prime is 640361016371. The next prime is 640361016431. The reversal of 640361016411 is 114610163046.

It is not a de Polignac number, because 640361016411 - 2⁷ = 640361016283 is a prime.

It is a super-2 number, since 2×640361016411² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (640361016431) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 609286836 + ... + 609287886.

It is an arithmetic number, because the mean of its divisors is an integer number (7682713920).

Almost surely, 2^640361016411 is an apocalyptic number.

640361016411 is a deficient number, since it is larger than the sum of its proper divisors (343026365349).

640361016411 is a wasteful number, since it uses less digits than its factorization.

640361016411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1365.

The product of its (nonzero) digits is 10368, while the sum is 33.

Adding to 640361016411 its reverse (114610163046), we get a palindrome (754971179457).

The spelling of 640361016411 in words is "six hundred forty billion, three hundred sixty-one million, sixteen thousand, four hundred eleven".