20433677766890 has 8 divisors (see below), whose sum is σ = 36780619980420. Its totient is φ = 8173471106752.

The previous prime is 20433677766863. The next prime is 20433677766923. The reversal of 20433677766890 is 9866777633402.

20433677766890 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 18573091741801 + 1860586025089 = 4309651^2 + 1364033^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 20433677766890.

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, 1021683888335 + ... + 1021683888354.

Almost surely, 2^{20433677766890} is an apocalyptic number.

20433677766890 is a deficient number, since it is larger than the sum of its proper divisors (16346942213530).

20433677766890 is a wasteful number, since it uses less digits than its factorization.

20433677766890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2043367776696.

The product of its (nonzero) digits is 384072192, while the sum is 68.

The spelling of 20433677766890 in words is "twenty trillion, four hundred thirty-three billion, six hundred seventy-seven million, seven hundred sixty-six thousand, eight hundred ninety".