11016356661 has 6 divisors (see below), whose sum is σ = 15912515190. Its totient is φ = 7344237768.

The previous prime is 11016356651. The next prime is 11016356699. The reversal of 11016356661 is 16665361011.

It can be written as a sum of positive squares in only one way, i.e., 8633940561 + 2382416100 = 92919^2 + 48810^2 .

It is not a de Polignac number, because 11016356661 - 2²³ = 11007968053 is a prime.

It is a super-2 number, since 2×11016356661² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11016356651) 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, 612019806 + ... + 612019823.

It is an arithmetic number, because the mean of its divisors is an integer number (2652085865).

Almost surely, 2^11016356661 is an apocalyptic number.

It is an amenable number.

11016356661 is a deficient number, since it is larger than the sum of its proper divisors (4896158529).

11016356661 is a wasteful number, since it uses less digits than its factorization.

11016356661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224039635 (or 1224039632 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The spelling of 11016356661 in words is "eleven billion, sixteen million, three hundred fifty-six thousand, six hundred sixty-one".