2021650544 has 20 divisors (see below), whose sum is σ = 3919477560. Its totient is φ = 1010172480.

The previous prime is 2021650507. The next prime is 2021650583. The reversal of 2021650544 is 4450561202.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14747 + ... + 65274.

It is an arithmetic number, because the mean of its divisors is an integer number (195973878).

Almost surely, 2^2021650544 is an apocalyptic number.

It is an amenable number.

2021650544 is a deficient number, since it is larger than the sum of its proper divisors (1897827016).

2021650544 is a wasteful number, since it uses less digits than its factorization.

2021650544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81608 (or 81602 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 2021650544 is about 44962.7684201051. The cubic root of 2021650544 is about 1264.4510721199.

The spelling of 2021650544 in words is "two billion, twenty-one million, six hundred fifty thousand, five hundred forty-four".