20340552260436 has 24 divisors (see below), whose sum is σ = 47513386644864. Its totient is φ = 6772741510080.

The previous prime is 20340552260429. The next prime is 20340552260467. The reversal of 20340552260436 is 63406225504302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 930310705 + ... + 930332568.

It is an arithmetic number, because the mean of its divisors is an integer number (1979724443536).

Almost surely, 2^{20340552260436} is an apocalyptic number.

It is an amenable number.

20340552260436 is an abundant number, since it is smaller than the sum of its proper divisors (27172834384428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20340552260436 is a wasteful number, since it uses less digits than its factorization.

20340552260436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1860644191 (or 1860644189 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 42.

Adding to 20340552260436 its reverse (63406225504302), we get a palindrome (83746777764738).

The spelling of 20340552260436 in words is "twenty trillion, three hundred forty billion, five hundred fifty-two million, two hundred sixty thousand, four hundred thirty-six".