20452534212 has 48 divisors (see below), whose sum is σ = 52114938624. Its totient is φ = 6191316000.

The previous prime is 20452534181. The next prime is 20452534231. The reversal of 20452534212 is 21243525402.

It is a self number, because there is not a number n which added to its sum of digits gives 20452534212.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48387 + ... + 207957.

It is an arithmetic number, because the mean of its divisors is an integer number (1085727888).

Almost surely, 2^20452534212 is an apocalyptic number.

20452534212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20452534212 is an abundant number, since it is smaller than the sum of its proper divisors (31662404412).

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

20452534212 is a wasteful number, since it uses less digits than its factorization.

20452534212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160560 (or 160558 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The spelling of 20452534212 in words is "twenty billion, four hundred fifty-two million, five hundred thirty-four thousand, two hundred twelve".