621671661014 has 16 divisors (see below), whose sum is σ = 982265280000. Its totient is φ = 294272515944.

The previous prime is 621671661007. The next prime is 621671661047. The reversal of 621671661014 is 410166176126.

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, 5598014 + ... + 5707985.

It is an arithmetic number, because the mean of its divisors is an integer number (61391580000).

Almost surely, 2^621671661014 is an apocalyptic number.

621671661014 is a deficient number, since it is larger than the sum of its proper divisors (360593618986).

621671661014 is a wasteful number, since it uses less digits than its factorization.

621671661014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11307467.

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 621671661014 in words is "six hundred twenty-one billion, six hundred seventy-one million, six hundred sixty-one thousand, fourteen".