11206707661 has 32 divisors (see below), whose sum is σ = 12160512000. Its totient is φ = 10296082368.

The previous prime is 11206707583. The next prime is 11206707671. The reversal of 11206707661 is 16670760211.

It is not a de Polignac number, because 11206707661 - 2²¹ = 11204610509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11206707661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11206707671) 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, 26746110 + ... + 26746528.

It is an arithmetic number, because the mean of its divisors is an integer number (380016000).

Almost surely, 2^11206707661 is an apocalyptic number.

It is an amenable number.

11206707661 is a deficient number, since it is larger than the sum of its proper divisors (953804339).

11206707661 is a wasteful number, since it uses less digits than its factorization.

11206707661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793.

The product of its (nonzero) digits is 21168, while the sum is 37.

The spelling of 11206707661 in words is "eleven billion, two hundred six million, seven hundred seven thousand, six hundred sixty-one".