11611051705 has 64 divisors (see below), whose sum is σ = 16514482176. Its totient is φ = 7813502400.

The previous prime is 11611051679. The next prime is 11611051721. The reversal of 11611051705 is 50715011611.

It is a de Polignac number, because none of the positive numbers 2^k-11611051705 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4743792 + ... + 4746238.

It is an arithmetic number, because the mean of its divisors is an integer number (258038784).

Almost surely, 2^11611051705 is an apocalyptic number.

It is an amenable number.

11611051705 is a deficient number, since it is larger than the sum of its proper divisors (4903430471).

11611051705 is a wasteful number, since it uses less digits than its factorization.

11611051705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2539 (or 2517 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 28.

The spelling of 11611051705 in words is "eleven billion, six hundred eleven million, fifty-one thousand, seven hundred five".