20403260553730 has 32 divisors (see below), whose sum is σ = 37536352959168. Its totient is φ = 7983143784000.

The previous prime is 20403260553713. The next prime is 20403260553839. The reversal of 20403260553730 is 3735506230402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121610436 + ... + 121778095.

It is an arithmetic number, because the mean of its divisors is an integer number (1173011029974).

Almost surely, 2^{20403260553730} is an apocalyptic number.

20403260553730 is a deficient number, since it is larger than the sum of its proper divisors (17133092405438).

20403260553730 is a wasteful number, since it uses less digits than its factorization.

20403260553730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243388722.

The product of its (nonzero) digits is 453600, while the sum is 40.

The spelling of 20403260553730 in words is "twenty trillion, four hundred three billion, two hundred sixty million, five hundred fifty-three thousand, seven hundred thirty".