20546655061 has 8 divisors (see below), whose sum is σ = 20948264064. Its totient is φ = 20145562320.

The previous prime is 20546655049. The next prime is 20546655079. The reversal of 20546655061 is 16055664502.

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 20546655061 - 2⁵ = 20546655029 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 (20546655001) 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, 48201 + ... + 208366.

It is an arithmetic number, because the mean of its divisors is an integer number (2618533008).

Almost surely, 2^20546655061 is an apocalyptic number.

It is an amenable number.

20546655061 is a deficient number, since it is larger than the sum of its proper divisors (401609003).

20546655061 is a wasteful number, since it uses less digits than its factorization.

20546655061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258131.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 20546655061 in words is "twenty billion, five hundred forty-six million, six hundred fifty-five thousand, sixty-one".