20352446399964 has 48 divisors (see below), whose sum is σ = 54343766892800. Its totient is φ = 5807422918656.

The previous prime is 20352446399951. The next prime is 20352446399977. The reversal of 20352446399964 is 46999364425302.

It is an interprime number because it is at equal distance from previous prime (20352446399951) and next prime (20352446399977).

It is a junction number, because it is equal to n+sod(n) for n = 20352446399895 and 20352446399904.

It is a congruent number.

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, 157471834 + ... + 157601025.

Almost surely, 2^{20352446399964} is an apocalyptic number.

It is an amenable number.

20352446399964 is an abundant number, since it is smaller than the sum of its proper divisors (33991320492836).

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

20352446399964 is a wasteful number, since it uses less digits than its factorization.

20352446399964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315073642 (or 315073640 counting only the distinct ones).

The product of its (nonzero) digits is 302330880, while the sum is 66.

The spelling of 20352446399964 in words is "twenty trillion, three hundred fifty-two billion, four hundred forty-six million, three hundred ninety-nine thousand, nine hundred sixty-four".