20054501460661 has 4 divisors (see below), whose sum is σ = 20054543053024. Its totient is φ = 20054459868300.

The previous prime is 20054501460577. The next prime is 20054501460671. The reversal of 20054501460661 is 16606410545002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20054501460661 - 2³⁹ = 19504745646773 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 (20054501460671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20064345 + ... + 21040126.

It is an arithmetic number, because the mean of its divisors is an integer number (5013635763256).

Almost surely, 2^{20054501460661} is an apocalyptic number.

It is an amenable number.

20054501460661 is a deficient number, since it is larger than the sum of its proper divisors (41592363).

20054501460661 is an equidigital number, since it uses as much as digits as its factorization.

20054501460661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41592362.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 20054501460661 in words is "twenty trillion, fifty-four billion, five hundred one million, four hundred sixty thousand, six hundred sixty-one".