20355153053450 has 24 divisors (see below), whose sum is σ = 37950944109120. Its totient is φ = 8122629086000.

The previous prime is 20355153053203. The next prime is 20355153053479. The reversal of 20355153053450 is 5435035155302.

It is a junction number, because it is equal to n+sod(n) for n = 20355153053398 and 20355153053407.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 485782226 + ... + 485824125.

It is an arithmetic number, because the mean of its divisors is an integer number (1581289337880).

Almost surely, 2^{20355153053450} is an apocalyptic number.

20355153053450 is a deficient number, since it is larger than the sum of its proper divisors (17595791055670).

20355153053450 is a wasteful number, since it uses less digits than its factorization.

20355153053450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971606782 (or 971606777 counting only the distinct ones).

The product of its (nonzero) digits is 675000, while the sum is 41.

The spelling of 20355153053450 in words is "twenty trillion, three hundred fifty-five billion, one hundred fifty-three million, fifty-three thousand, four hundred fifty".