22261355545 has 24 divisors (see below), whose sum is σ = 31621608648. Its totient is φ = 14944680960.

The previous prime is 22261355513. The next prime is 22261355563. The reversal of 22261355545 is 54555316222.

It can be written as a sum of positive squares in 4 ways, for example, as 1379082496 + 20882273049 = 37136^2 + 144507^2 .

It is not a de Polignac number, because 22261355545 - 2⁵ = 22261355513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22261355498 and 22261355507.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1407352 + ... + 1423081.

It is an arithmetic number, because the mean of its divisors is an integer number (1317567027).

Almost surely, 2^22261355545 is an apocalyptic number.

It is an amenable number.

22261355545 is a deficient number, since it is larger than the sum of its proper divisors (9360253103).

22261355545 is a wasteful number, since it uses less digits than its factorization.

22261355545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2830473 (or 2830462 counting only the distinct ones).

The product of its digits is 360000, while the sum is 40.

The spelling of 22261355545 in words is "twenty-two billion, two hundred sixty-one million, three hundred fifty-five thousand, five hundred forty-five".