20446253346 has 32 divisors (see below), whose sum is σ = 41903382528. Its totient is φ = 6647045760.

The previous prime is 20446253273. The next prime is 20446253369. The reversal of 20446253346 is 64335264402.

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, 869820 + ... + 893016.

It is an arithmetic number, because the mean of its divisors is an integer number (1309480704).

Almost surely, 2^20446253346 is an apocalyptic number.

20446253346 is an abundant number, since it is smaller than the sum of its proper divisors (21457129182).

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

20446253346 is a wasteful number, since it uses less digits than its factorization.

20446253346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26826.

The product of its (nonzero) digits is 414720, while the sum is 39.

The spelling of 20446253346 in words is "twenty billion, four hundred forty-six million, two hundred fifty-three thousand, three hundred forty-six".