54650131661 has 16 divisors (see below), whose sum is σ = 57852662400. Its totient is φ = 51481064448.

The previous prime is 54650131639. The next prime is 54650131667. The reversal of 54650131661 is 16613105645.

It is a cyclic number.

It is not a de Polignac number, because 54650131661 - 2¹⁴ = 54650115277 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 (54650131667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2396465 + ... + 2419161.

It is an arithmetic number, because the mean of its divisors is an integer number (3615791400).

Almost surely, 2^54650131661 is an apocalyptic number.

It is an amenable number.

54650131661 is a deficient number, since it is larger than the sum of its proper divisors (3202530739).

54650131661 is a wasteful number, since it uses less digits than its factorization.

54650131661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23428.

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 54650131661 in words is "fifty-four billion, six hundred fifty million, one hundred thirty-one thousand, six hundred sixty-one".