20007066440534 has 16 divisors (see below), whose sum is σ = 30519995138640. Its totient is φ = 9833742963840.

The previous prime is 20007066440509. The next prime is 20007066440539. The reversal of 20007066440534 is 43504466070002.

It is a junction number, because it is equal to n+sod(n) for n = 20007066440491 and 20007066440500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20007066440539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2869754 + ... + 6946194.

It is an arithmetic number, because the mean of its divisors is an integer number (1907499696165).

Almost surely, 2^{20007066440534} is an apocalyptic number.

20007066440534 is a deficient number, since it is larger than the sum of its proper divisors (10512928698106).

20007066440534 is a wasteful number, since it uses less digits than its factorization.

20007066440534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4118095.

The product of its (nonzero) digits is 483840, while the sum is 41.

The spelling of 20007066440534 in words is "twenty trillion, seven billion, sixty-six million, four hundred forty thousand, five hundred thirty-four".