20373003443146 has 4 divisors (see below), whose sum is σ = 30559505164722. Its totient is φ = 10186501721572.

The previous prime is 20373003443113. The next prime is 20373003443153. The reversal of 20373003443146 is 64134430037302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20068563242025 + 304440201121 = 4479795^2 + 551761^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20373003443099 and 20373003443108.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5093250860785 + ... + 5093250860788.

Almost surely, 2^{20373003443146} is an apocalyptic number.

20373003443146 is a deficient number, since it is larger than the sum of its proper divisors (10186501721576).

20373003443146 is a wasteful number, since it uses less digits than its factorization.

20373003443146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10186501721575.

The product of its (nonzero) digits is 435456, while the sum is 40.

The spelling of 20373003443146 in words is "twenty trillion, three hundred seventy-three billion, three million, four hundred forty-three thousand, one hundred forty-six".