20221356544148 has 6 divisors (see below), whose sum is σ = 35387373952266. Its totient is φ = 10110678272072.

The previous prime is 20221356544139. The next prime is 20221356544159. The reversal of 20221356544148 is 84144565312202.

It can be written as a sum of positive squares in only one way, i.e., 19644148637584 + 577207906564 = 4432172^2 + 759742^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2527669568015 + ... + 2527669568022.

It is an arithmetic number, because the mean of its divisors is an integer number (5897895658711).

Almost surely, 2^{20221356544148} is an apocalyptic number.

It is an amenable number.

20221356544148 is a deficient number, since it is larger than the sum of its proper divisors (15166017408118).

20221356544148 is a wasteful number, since it uses less digits than its factorization.

20221356544148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5055339136041 (or 5055339136039 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 47.

The spelling of 20221356544148 in words is "twenty trillion, two hundred twenty-one billion, three hundred fifty-six million, five hundred forty-four thousand, one hundred forty-eight".