2035616661 has 36 divisors (see below), whose sum is σ = 3351535200. Its totient is φ = 1186739424.

The previous prime is 2035616641. The next prime is 2035616677. The reversal of 2035616661 is 1666165302.

It is not a de Polignac number, because 2035616661 - 2¹¹ = 2035614613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2035616641) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6321 + ... + 64118.

It is an arithmetic number, because the mean of its divisors is an integer number (93098200).

Almost surely, 2^2035616661 is an apocalyptic number.

It is an amenable number.

2035616661 is a deficient number, since it is larger than the sum of its proper divisors (1315918539).

2035616661 is a wasteful number, since it uses less digits than its factorization.

2035616661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70490 (or 70474 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 2035616661 is about 45117.8086901392. The cubic root of 2035616661 is about 1267.3561177899.

The spelling of 2035616661 in words is "two billion, thirty-five million, six hundred sixteen thousand, six hundred sixty-one".