20634206066534 has 16 divisors (see below), whose sum is σ = 31051347899616. Its totient is φ = 10283761800000.

The previous prime is 20634206066527. The next prime is 20634206066561. The reversal of 20634206066534 is 43566060243602.

It is a congruent number.

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, 6990959 + ... + 9494309.

It is an arithmetic number, because the mean of its divisors is an integer number (1940709243726).

Almost surely, 2^{20634206066534} is an apocalyptic number.

20634206066534 is a deficient number, since it is larger than the sum of its proper divisors (10417141833082).

20634206066534 is a wasteful number, since it uses less digits than its factorization.

20634206066534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2516671.

The product of its (nonzero) digits is 3732480, while the sum is 47.

The spelling of 20634206066534 in words is "twenty trillion, six hundred thirty-four billion, two hundred six million, sixty-six thousand, five hundred thirty-four".