2070205621 has 8 divisors (see below), whose sum is σ = 2273364288. Its totient is φ = 1869540000.

The previous prime is 2070205619. The next prime is 2070205639. The reversal of 2070205621 is 1265020702.

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

It is a cyclic number.

It is not a de Polignac number, because 2070205621 - 2¹ = 2070205619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2070205681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 621520 + ... + 624841.

It is an arithmetic number, because the mean of its divisors is an integer number (284170536).

Almost surely, 2^2070205621 is an apocalyptic number.

It is an amenable number.

2070205621 is a deficient number, since it is larger than the sum of its proper divisors (203158667).

2070205621 is a wasteful number, since it uses less digits than its factorization.

2070205621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246523.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 2070205621 is about 45499.5123160677. The cubic root of 2070205621 is about 1274.4940955349.

The spelling of 2070205621 in words is "two billion, seventy million, two hundred five thousand, six hundred twenty-one".