20549377124641 has 8 divisors (see below), whose sum is σ = 20678914307520. Its totient is φ = 20419917168528.

The previous prime is 20549377124503. The next prime is 20549377124657. The reversal of 20549377124641 is 14642177394502.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20549377124641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20549377224641) 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, 18772786 + ... + 19837243.

It is an arithmetic number, because the mean of its divisors is an integer number (2584864288440).

Almost surely, 2^{20549377124641} is an apocalyptic number.

It is an amenable number.

20549377124641 is a deficient number, since it is larger than the sum of its proper divisors (129537182879).

20549377124641 is a wasteful number, since it uses less digits than its factorization.

20549377124641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38613383.

The product of its (nonzero) digits is 10160640, while the sum is 55.

The spelling of 20549377124641 in words is "twenty trillion, five hundred forty-nine billion, three hundred seventy-seven million, one hundred twenty-four thousand, six hundred forty-one".