20341651650661 has 8 divisors (see below), whose sum is σ = 22197311869824. Its totient is φ = 18487061291520.

The previous prime is 20341651650631. The next prime is 20341651650707. The reversal of 20341651650661 is 16605615614302.

It is a happy number.

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 20341651650661 - 2¹¹ = 20341651648613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20341651650631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267425245 + ... + 267501298.

It is an arithmetic number, because the mean of its divisors is an integer number (2774663983728).

Almost surely, 2^{20341651650661} is an apocalyptic number.

It is an amenable number.

20341651650661 is a deficient number, since it is larger than the sum of its proper divisors (1855660219163).

20341651650661 is a wasteful number, since it uses less digits than its factorization.

20341651650661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534930011.

The product of its (nonzero) digits is 777600, while the sum is 46.

The spelling of 20341651650661 in words is "twenty trillion, three hundred forty-one billion, six hundred fifty-one million, six hundred fifty thousand, six hundred sixty-one".