20435652154253 has 12 divisors (see below), whose sum is σ = 23909496065820. Its totient is φ = 17415023133312.

The previous prime is 20435652154193. The next prime is 20435652154273. The reversal of 20435652154253 is 35245125653402.

It can be written as a sum of positive squares in 2 ways, for example, as 11102737133929 + 9332915020324 = 3332077^2 + 3054982^2 .

It is not a de Polignac number, because 20435652154253 - 2¹⁰ = 20435652153229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20435652154198 and 20435652154207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20435652154273) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1205350268 + ... + 1205367221.

It is an arithmetic number, because the mean of its divisors is an integer number (1992458005485).

Almost surely, 2^{20435652154253} is an apocalyptic number.

It is an amenable number.

20435652154253 is a deficient number, since it is larger than the sum of its proper divisors (3473843911567).

20435652154253 is a wasteful number, since it uses less digits than its factorization.

20435652154253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2410717676 (or 2410717669 counting only the distinct ones).

The product of its (nonzero) digits is 4320000, while the sum is 47.

The spelling of 20435652154253 in words is "twenty trillion, four hundred thirty-five billion, six hundred fifty-two million, one hundred fifty-four thousand, two hundred fifty-three".