2061705550 has 24 divisors (see below), whose sum is σ = 3860523000. Its totient is φ = 819144480.

The previous prime is 2061705517. The next prime is 2061705557. The reversal of 2061705550 is 555071602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2061705557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130920 + ... + 145819.

It is an arithmetic number, because the mean of its divisors is an integer number (160855125).

Almost surely, 2^2061705550 is an apocalyptic number.

2061705550 is a deficient number, since it is larger than the sum of its proper divisors (1798817450).

2061705550 is a wasteful number, since it uses less digits than its factorization.

2061705550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276900 (or 276895 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 2061705550 is about 45406.0078623964. The cubic root of 2061705550 is about 1272.7473848167.

The spelling of 2061705550 in words is "two billion, sixty-one million, seven hundred five thousand, five hundred fifty".