20226667357 has 4 divisors (see below), whose sum is σ = 21782564860. Its totient is φ = 18670769856.

The previous prime is 20226667327. The next prime is 20226667361. The reversal of 20226667357 is 75376662202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13182254596 + 7044412761 = 114814^2 + 83931^2 .

It is a cyclic number.

It is not a de Polignac number, because 20226667357 - 2³¹ = 18079183709 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 (20226667327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 777948732 + ... + 777948757.

It is an arithmetic number, because the mean of its divisors is an integer number (5445641215).

Almost surely, 2^20226667357 is an apocalyptic number.

It is an amenable number.

20226667357 is a deficient number, since it is larger than the sum of its proper divisors (1555897503).

20226667357 is a wasteful number, since it uses less digits than its factorization.

20226667357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1555897502.

The product of its (nonzero) digits is 1270080, while the sum is 46.

The spelling of 20226667357 in words is "twenty billion, two hundred twenty-six million, six hundred sixty-seven thousand, three hundred fifty-seven".