641350277466 has 16 divisors (see below), whose sum is σ = 1283248980000. Its totient is φ = 213692021648.

The previous prime is 641350277369. The next prime is 641350277473. The reversal of 641350277466 is 664772053146.

641350277466 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×641350277466² (a number of 24 digits) contains 22 as substring.

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, 22835841 + ... + 22863908.

It is an arithmetic number, because the mean of its divisors is an integer number (80203061250).

Almost surely, 2^641350277466 is an apocalyptic number.

641350277466 is an abundant number, since it is smaller than the sum of its proper divisors (641898702534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

641350277466 is a wasteful number, since it uses less digits than its factorization.

641350277466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45702093.

The product of its (nonzero) digits is 5080320, while the sum is 51.

The spelling of 641350277466 in words is "six hundred forty-one billion, three hundred fifty million, two hundred seventy-seven thousand, four hundred sixty-six".