2120260643644 has 96 divisors (see below), whose sum is σ = 4616572133376. Its totient is φ = 837105146880.

The previous prime is 2120260643629. The next prime is 2120260643651. The reversal of 2120260643644 is 4463460620212.

It is a junction number, because it is equal to n+sod(n) for n = 2120260643597 and 2120260643606.

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, 49444557 + ... + 49487419.

It is an arithmetic number, because the mean of its divisors is an integer number (48089293056).

Almost surely, 2^{2120260643644} is an apocalyptic number.

It is an amenable number.

2120260643644 is an abundant number, since it is smaller than the sum of its proper divisors (2496311489732).

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

2120260643644 is a wasteful number, since it uses less digits than its factorization.

2120260643644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47995 (or 47993 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 40.

The spelling of 2120260643644 in words is "two trillion, one hundred twenty billion, two hundred sixty million, six hundred forty-three thousand, six hundred forty-four".