20416505444434 has 48 divisors (see below), whose sum is σ = 35126710625664. Its totient is φ = 8876432069120.

The previous prime is 20416505444407. The next prime is 20416505444437. The reversal of 20416505444434 is 43444450561402.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (20416505444437) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 241839459 + ... + 241923865.

It is an arithmetic number, because the mean of its divisors is an integer number (731806471368).

Almost surely, 2^{20416505444434} is an apocalyptic number.

20416505444434 is a deficient number, since it is larger than the sum of its proper divisors (14710205181230).

20416505444434 is a wasteful number, since it uses less digits than its factorization.

20416505444434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127911 (or 127900 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 46.

The spelling of 20416505444434 in words is "twenty trillion, four hundred sixteen billion, five hundred five million, four hundred forty-four thousand, four hundred thirty-four".