22065663545 has 16 divisors (see below), whose sum is σ = 27199473408. Its totient is φ = 17172256320.

The previous prime is 22065663517. The next prime is 22065663551. The reversal of 22065663545 is 54536656022.

It is not a de Polignac number, because 22065663545 - 2⁶ = 22065663481 is a prime.

It is a super-2 number, since 2×22065663545² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22065663496 and 22065663505.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1738412 + ... + 1751058.

It is an arithmetic number, because the mean of its divisors is an integer number (1699967088).

Almost surely, 2^22065663545 is an apocalyptic number.

It is an amenable number.

22065663545 is a deficient number, since it is larger than the sum of its proper divisors (5133809863).

22065663545 is a wasteful number, since it uses less digits than its factorization.

22065663545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22120.

The product of its (nonzero) digits is 1296000, while the sum is 44.

The spelling of 22065663545 in words is "twenty-two billion, sixty-five million, six hundred sixty-three thousand, five hundred forty-five".