1081705611 has 32 divisors (see below), whose sum is σ = 1686601728. Its totient is φ = 603810720.

The previous prime is 1081705591. The next prime is 1081705627. The reversal of 1081705611 is 1165071801.

It is not a de Polignac number, because 1081705611 - 2⁷ = 1081705483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1081705211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1017066 + ... + 1018128.

It is an arithmetic number, because the mean of its divisors is an integer number (52706304).

Almost surely, 2^1081705611 is an apocalyptic number.

1081705611 is a deficient number, since it is larger than the sum of its proper divisors (604896117).

1081705611 is a wasteful number, since it uses less digits than its factorization.

1081705611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151.

The product of its (nonzero) digits is 1680, while the sum is 30.

The square root of 1081705611 is about 32889.2932578370. The cubic root of 1081705611 is about 1026.5253864854.

The spelling of 1081705611 in words is "one billion, eighty-one million, seven hundred five thousand, six hundred eleven".