2061664160 has 48 divisors (see below), whose sum is σ = 5127040800. Its totient is φ = 781261056.

The previous prime is 2061664159. The next prime is 2061664181. The reversal of 2061664160 is 614661602.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336050 + ... + 342129.

It is an arithmetic number, because the mean of its divisors is an integer number (106813350).

Almost surely, 2^2061664160 is an apocalyptic number.

2061664160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2061664160 is an abundant number, since it is smaller than the sum of its proper divisors (3065376640).

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

2061664160 is a wasteful number, since it uses less digits than its factorization.

2061664160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678213 (or 678205 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 2061664160 is about 45405.5520834182. The cubic root of 2061664160 is about 1272.7388676989.

The spelling of 2061664160 in words is "two billion, sixty-one million, six hundred sixty-four thousand, one hundred sixty".