2061421040560 has 80 divisors (see below), whose sum is σ = 5765779180800. Its totient is φ = 669574349568.

The previous prime is 2061421040521. The next prime is 2061421040603. The reversal of 2061421040560 is 650401241602.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×2061421040560² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96860650 + ... + 96881929.

It is an arithmetic number, because the mean of its divisors is an integer number (72072239760).

Almost surely, 2^{2061421040560} is an apocalyptic number.

2061421040560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2061421040560 is an abundant number, since it is smaller than the sum of its proper divisors (3704358140240).

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

2061421040560 is a wasteful number, since it uses less digits than its factorization.

2061421040560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193742618 (or 193742612 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 2061421040560 in words is "two trillion, sixty-one billion, four hundred twenty-one million, forty thousand, five hundred sixty".