20461336143153 has 16 divisors (see below), whose sum is σ = 28757605939200. Its totient is φ = 12904975613520.

The previous prime is 20461336143151. The next prime is 20461336143167. The reversal of 20461336143153 is 35134163316402.

It is not a de Polignac number, because 20461336143153 - 2¹ = 20461336143151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20461336143151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249591013 + ... + 249672978.

It is an arithmetic number, because the mean of its divisors is an integer number (1797350371200).

Almost surely, 2^{20461336143153} is an apocalyptic number.

It is an amenable number.

20461336143153 is a deficient number, since it is larger than the sum of its proper divisors (8296269796047).

20461336143153 is a wasteful number, since it uses less digits than its factorization.

20461336143153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499264732.

The product of its (nonzero) digits is 466560, while the sum is 42.

Adding to 20461336143153 its reverse (35134163316402), we get a palindrome (55595499459555).

The spelling of 20461336143153 in words is "twenty trillion, four hundred sixty-one billion, three hundred thirty-six million, one hundred forty-three thousand, one hundred fifty-three".