1640630664422 has 16 divisors (see below), whose sum is σ = 2590494490800. Its totient is φ = 777133334880.

The previous prime is 1640630664383. The next prime is 1640630664473. The reversal of 1640630664422 is 2244660360461.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7152272 + ... + 7378092.

It is an arithmetic number, because the mean of its divisors is an integer number (161905905675).

Almost surely, 2^{1640630664422} is an apocalyptic number.

1640630664422 is a deficient number, since it is larger than the sum of its proper divisors (949863826378).

1640630664422 is a wasteful number, since it uses less digits than its factorization.

1640630664422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417031.

The product of its (nonzero) digits is 995328, while the sum is 44.

The spelling of 1640630664422 in words is "one trillion, six hundred forty billion, six hundred thirty million, six hundred sixty-four thousand, four hundred twenty-two".