20610146255247 has 6 divisors (see below), whose sum is σ = 29770211257592. Its totient is φ = 13740097503492.

The previous prime is 20610146255131. The next prime is 20610146255261. The reversal of 20610146255247 is 74255264101602.

20610146255247 is a `hidden beast` number, since 2 + 0 + 6 + 1 + 0 + 14 + 625 + 5 + 2 + 4 + 7 = 666.

It is not a de Polignac number, because 20610146255247 - 2⁷ = 20610146255119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20610146255287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1145008125283 + ... + 1145008125300.

Almost surely, 2^{20610146255247} is an apocalyptic number.

20610146255247 is a deficient number, since it is larger than the sum of its proper divisors (9160065002345).

20610146255247 is a wasteful number, since it uses less digits than its factorization.

20610146255247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2290016250589 (or 2290016250586 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 20610146255247 in words is "twenty trillion, six hundred ten billion, one hundred forty-six million, two hundred fifty-five thousand, two hundred forty-seven".