20650514423461 has 16 divisors (see below), whose sum is σ = 22489897676400. Its totient is φ = 18846990632448.

The previous prime is 20650514423411. The next prime is 20650514423479. The reversal of 20650514423461 is 16432441505602.

It can be written as a sum of positive squares in 8 ways, for example, as 4881474872836 + 15769039550625 = 2209406^2 + 3971025^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20650514423461 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 (20650514423411) 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, 26257035 + ... + 27032071.

It is an arithmetic number, because the mean of its divisors is an integer number (1405618604775).

Almost surely, 2^{20650514423461} is an apocalyptic number.

It is an amenable number.

20650514423461 is a deficient number, since it is larger than the sum of its proper divisors (1839383252939).

20650514423461 is a wasteful number, since it uses less digits than its factorization.

20650514423461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798168.

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 20650514423461 in words is "twenty trillion, six hundred fifty billion, five hundred fourteen million, four hundred twenty-three thousand, four hundred sixty-one".