20269621533494 has 8 divisors (see below), whose sum is σ = 30503469539928. Its totient is φ = 10101798353520.

The previous prime is 20269621533439. The next prime is 20269621533509. The reversal of 20269621533494 is 49433512696202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20269621533494² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16506205847 + ... + 16506207074.

It is an arithmetic number, because the mean of its divisors is an integer number (3812933692491).

Almost surely, 2^{20269621533494} is an apocalyptic number.

20269621533494 is a deficient number, since it is larger than the sum of its proper divisors (10233848006434).

20269621533494 is a wasteful number, since it uses less digits than its factorization.

20269621533494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33012413230.

The product of its (nonzero) digits is 16796160, while the sum is 56.

The spelling of 20269621533494 in words is "twenty trillion, two hundred sixty-nine billion, six hundred twenty-one million, five hundred thirty-three thousand, four hundred ninety-four".