20203355623674 has 32 divisors (see below), whose sum is σ = 40621709131776. Its totient is φ = 6698624874480.

The previous prime is 20203355623673. The next prime is 20203355623679. The reversal of 20203355623674 is 47632655330202.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20203355623673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12880959 + ... + 14364045.

It is an arithmetic number, because the mean of its divisors is an integer number (1269428410368).

Almost surely, 2^{20203355623674} is an apocalyptic number.

20203355623674 is an abundant number, since it is smaller than the sum of its proper divisors (20418353508102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20203355623674 is a wasteful number, since it uses less digits than its factorization.

20203355623674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1495170.

The product of its (nonzero) digits is 5443200, while the sum is 48.

The spelling of 20203355623674 in words is "twenty trillion, two hundred three billion, three hundred fifty-five million, six hundred twenty-three thousand, six hundred seventy-four".