641679633105 has 32 divisors (see below), whose sum is σ = 1173558979584. Its totient is φ = 293288776896.

The previous prime is 641679633059. The next prime is 641679633113. The reversal of 641679633105 is 501336976146.

It is not a de Polignac number, because 641679633105 - 2⁷ = 641679632977 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90562 + ... + 1136468.

It is an arithmetic number, because the mean of its divisors is an integer number (36673718112).

Almost surely, 2^641679633105 is an apocalyptic number.

It is an amenable number.

641679633105 is a deficient number, since it is larger than the sum of its proper divisors (531879346479).

641679633105 is a wasteful number, since it uses less digits than its factorization.

641679633105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051765.

The product of its (nonzero) digits is 2449440, while the sum is 51.

The spelling of 641679633105 in words is "six hundred forty-one billion, six hundred seventy-nine million, six hundred thirty-three thousand, one hundred five".