2061355641 has 16 divisors (see below), whose sum is σ = 2855174400. Its totient is φ = 1321284608.

The previous prime is 2061355631. The next prime is 2061355643. The reversal of 2061355641 is 1465531602.

It is a cyclic number.

It is not a de Polignac number, because 2061355641 - 2⁶ = 2061355577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2061355643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28776 + ... + 70361.

It is an arithmetic number, because the mean of its divisors is an integer number (178448400).

Almost surely, 2^2061355641 is an apocalyptic number.

It is an amenable number.

2061355641 is a deficient number, since it is larger than the sum of its proper divisors (793818759).

2061355641 is a wasteful number, since it uses less digits than its factorization.

2061355641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99408.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 2061355641 is about 45402.1545854379. The cubic root of 2061355641 is about 1272.6753779352.

The spelling of 2061355641 in words is "two billion, sixty-one million, three hundred fifty-five thousand, six hundred forty-one".