11061605601 has 6 divisors (see below), whose sum is σ = 15977874770. Its totient is φ = 7374403728.

The previous prime is 11061605561. The next prime is 11061605603. The reversal of 11061605601 is 10650616011.

It can be written as a sum of positive squares in only one way, i.e., 9971021025 + 1090584576 = 99855^2 + 33024^2 .

It is not a de Polignac number, because 11061605601 - 2¹³ = 11061597409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11061605603) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 614533636 + ... + 614533653.

Almost surely, 2^11061605601 is an apocalyptic number.

It is an amenable number.

11061605601 is a deficient number, since it is larger than the sum of its proper divisors (4916269169).

11061605601 is a wasteful number, since it uses less digits than its factorization.

11061605601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229067295 (or 1229067292 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The spelling of 11061605601 in words is "eleven billion, sixty-one million, six hundred five thousand, six hundred one".