2061662057 has 8 divisors (see below), whose sum is σ = 2537430336. Its totient is φ = 1631205072.

The previous prime is 2061662033. The next prime is 2061662059. The reversal of 2061662057 is 7502661602.

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

It is not a de Polignac number, because 2061662057 - 2¹⁸ = 2061399913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2061662059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11327723 + ... + 11327904.

It is an arithmetic number, because the mean of its divisors is an integer number (317178792).

Almost surely, 2^2061662057 is an apocalyptic number.

It is an amenable number.

2061662057 is a deficient number, since it is larger than the sum of its proper divisors (475768279).

2061662057 is a wasteful number, since it uses less digits than its factorization.

2061662057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22655647.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 2061662057 is about 45405.5289254514. The cubic root of 2061662057 is about 1272.7384349465.

The spelling of 2061662057 in words is "two billion, sixty-one million, six hundred sixty-two thousand, fifty-seven".