10951964661 has 8 divisors (see below), whose sum is σ = 15930130464. Its totient is φ = 6637554320.

The previous prime is 10951964641. The next prime is 10951964663. The reversal of 10951964661 is 16646915901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10951964661 - 2¹¹ = 10951962613 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10951964661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10951964663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165938826 + ... + 165938891.

It is an arithmetic number, because the mean of its divisors is an integer number (1991266308).

Almost surely, 2^10951964661 is an apocalyptic number.

10951964661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10951964661 is a deficient number, since it is larger than the sum of its proper divisors (4978165803).

10951964661 is a wasteful number, since it uses less digits than its factorization.

10951964661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331877731.

The product of its (nonzero) digits is 349920, while the sum is 48.

The spelling of 10951964661 in words is "ten billion, nine hundred fifty-one million, nine hundred sixty-four thousand, six hundred sixty-one".