20546121694 has 48 divisors (see below), whose sum is σ = 37780110720. Its totient is φ = 8332677360.

The previous prime is 20546121671. The next prime is 20546121727. The reversal of 20546121694 is 49612164502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1794849 + ... + 1806259.

It is an arithmetic number, because the mean of its divisors is an integer number (787085640).

Almost surely, 2^20546121694 is an apocalyptic number.

20546121694 is a deficient number, since it is larger than the sum of its proper divisors (17233989026).

20546121694 is a wasteful number, since it uses less digits than its factorization.

20546121694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12413 (or 12406 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 20546121694 in words is "twenty billion, five hundred forty-six million, one hundred twenty-one thousand, six hundred ninety-four".