2070720660 has 24 divisors (see below), whose sum is σ = 5798018016. Its totient is φ = 552192160.

The previous prime is 2070720647. The next prime is 2070720661. The reversal of 2070720660 is 660270702.

2070720660 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2070720661) 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, 17255946 + ... + 17256065.

It is an arithmetic number, because the mean of its divisors is an integer number (241584084).

Almost surely, 2^2070720660 is an apocalyptic number.

2070720660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2070720660 is an abundant number, since it is smaller than the sum of its proper divisors (3727297356).

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

2070720660 is a wasteful number, since it uses less digits than its factorization.

2070720660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34512023 (or 34512021 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 2070720660 is about 45505.1717939840. The cubic root of 2070720660 is about 1274.5997790363.

The spelling of 2070720660 in words is "two billion, seventy million, seven hundred twenty thousand, six hundred sixty".