22154540741 has 2 divisors, whose sum is σ = 22154540742. Its totient is φ = 22154540740.

The previous prime is 22154540663. The next prime is 22154540753. The reversal of 22154540741 is 14704545122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14887660225 + 7266880516 = 122015^2 + 85246^2 .

It is a cyclic number.

It is not a de Polignac number, because 22154540741 - 2¹⁰ = 22154539717 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22154540791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11077270370 + 11077270371.

It is an arithmetic number, because the mean of its divisors is an integer number (11077270371).

Almost surely, 2^22154540741 is an apocalyptic number.

It is an amenable number.

22154540741 is a deficient number, since it is larger than the sum of its proper divisors (1).

22154540741 is an equidigital number, since it uses as much as digits as its factorization.

22154540741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 44800, while the sum is 35.

The spelling of 22154540741 in words is "twenty-two billion, one hundred fifty-four million, five hundred forty thousand, seven hundred forty-one".