20003506776145 has 8 divisors (see below), whose sum is σ = 25416220374504. Its totient is φ = 15061463925504.

The previous prime is 20003506776119. The next prime is 20003506776151. The reversal of 20003506776145 is 54167760530002.

It can be written as a sum of positive squares in 4 ways, for example, as 8087920781329 + 11915585994816 = 2843927^2 + 3451896^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 20003506776145 - 2¹⁹ = 20003506251857 is a prime.

It is a super-2 number, since 2×20003506776145² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20003506776095 and 20003506776104.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117667686834 + ... + 117667687003.

It is an arithmetic number, because the mean of its divisors is an integer number (3177027546813).

Almost surely, 2^{20003506776145} is an apocalyptic number.

It is an amenable number.

20003506776145 is a deficient number, since it is larger than the sum of its proper divisors (5412713598359).

20003506776145 is a wasteful number, since it uses less digits than its factorization.

20003506776145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235335373859.

The product of its (nonzero) digits is 1058400, while the sum is 46.

The spelling of 20003506776145 in words is "twenty trillion, three billion, five hundred six million, seven hundred seventy-six thousand, one hundred forty-five".