20373550443 has 12 divisors (see below), whose sum is σ = 30707960400. Its totient is φ = 12991829136.

The previous prime is 20373550411. The next prime is 20373550447. The reversal of 20373550443 is 34405537302.

20373550443 is a `hidden beast` number, since 203 + 7 + 3 + 5 + 5 + 0 + 443 = 666.

It is not a de Polignac number, because 20373550443 - 2⁵ = 20373550411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20373550398 and 20373550407.

It is not an unprimeable number, because it can be changed into a prime (20373550447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49211268 + ... + 49211681.

It is an arithmetic number, because the mean of its divisors is an integer number (2558996700).

Almost surely, 2^20373550443 is an apocalyptic number.

20373550443 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20373550443 is a deficient number, since it is larger than the sum of its proper divisors (10334409957).

20373550443 is a wasteful number, since it uses less digits than its factorization.

20373550443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98422978 (or 98422975 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 36.

The spelling of 20373550443 in words is "twenty billion, three hundred seventy-three million, five hundred fifty thousand, four hundred forty-three".