20454631652 has 48 divisors (see below), whose sum is σ = 44613864960. Its totient is φ = 7989501312.

The previous prime is 20454631577. The next prime is 20454631669. The reversal of 20454631652 is 25613645402.

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, 326903 + ... + 384414.

It is an arithmetic number, because the mean of its divisors is an integer number (929455520).

Almost surely, 2^20454631652 is an apocalyptic number.

It is an amenable number.

20454631652 is an abundant number, since it is smaller than the sum of its proper divisors (24159233308).

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

20454631652 is a wasteful number, since it uses less digits than its factorization.

20454631652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711420 (or 711418 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 20454631652 in words is "twenty billion, four hundred fifty-four million, six hundred thirty-one thousand, six hundred fifty-two".