1621064660214 has 64 divisors (see below), whose sum is σ = 3379749120000. Its totient is φ = 517769003520.

The previous prime is 1621064660161. The next prime is 1621064660269. The reversal of 1621064660214 is 4120664601261.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30161137 + ... + 30214835.

It is an arithmetic number, because the mean of its divisors is an integer number (52808580000).

Almost surely, 2^{1621064660214} is an apocalyptic number.

1621064660214 is an abundant number, since it is smaller than the sum of its proper divisors (1758684459786).

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

1621064660214 is a wasteful number, since it uses less digits than its factorization.

1621064660214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55333.

The product of its (nonzero) digits is 82944, while the sum is 39.

The spelling of 1621064660214 in words is "one trillion, six hundred twenty-one billion, sixty-four million, six hundred sixty thousand, two hundred fourteen".