2121641552662 has 8 divisors (see below), whose sum is σ = 3182864839416. Its totient is φ = 1060686606192.

The previous prime is 2121641552629. The next prime is 2121641552669. The reversal of 2121641552662 is 2662551461212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121641552669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67065303 + ... + 67096930.

It is an arithmetic number, because the mean of its divisors is an integer number (397858104927).

Almost surely, 2^{2121641552662} is an apocalyptic number.

2121641552662 is a deficient number, since it is larger than the sum of its proper divisors (1061223286754).

2121641552662 is a wasteful number, since it uses less digits than its factorization.

2121641552662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134170142.

The product of its digits is 345600, while the sum is 43.

The spelling of 2121641552662 in words is "two trillion, one hundred twenty-one billion, six hundred forty-one million, five hundred fifty-two thousand, six hundred sixty-two".