20416165642154 has 16 divisors (see below), whose sum is σ = 30635307518400. Its totient is φ = 10204396718880.

The previous prime is 20416165642151. The next prime is 20416165642189. The reversal of 20416165642154 is 45124656161402.

It is a junction number, because it is equal to n+sod(n) for n = 20416165642099 and 20416165642108.

It is not an unprimeable number, because it can be changed into a prime (20416165642151) 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, 253265147 + ... + 253345745.

It is an arithmetic number, because the mean of its divisors is an integer number (1914706719900).

Almost surely, 2^{20416165642154} is an apocalyptic number.

20416165642154 is a deficient number, since it is larger than the sum of its proper divisors (10219141876246).

20416165642154 is a wasteful number, since it uses less digits than its factorization.

20416165642154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124765.

The product of its (nonzero) digits is 1382400, while the sum is 47.

The spelling of 20416165642154 in words is "twenty trillion, four hundred sixteen billion, one hundred sixty-five million, six hundred forty-two thousand, one hundred fifty-four".