19946700352 has 14 divisors (see below), whose sum is σ = 39581733638. Its totient is φ = 9973350144.

The previous prime is 19946700331. The next prime is 19946700409. The reversal of 19946700352 is 25300764991.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 18315832896 + 1630867456 = 135336^2 + 40384^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155833533 + ... + 155833660.

Almost surely, 2^19946700352 is an apocalyptic number.

It is an amenable number.

19946700352 is a deficient number, since it is larger than the sum of its proper divisors (19635033286).

19946700352 is an equidigital number, since it uses as much as digits as its factorization.

19946700352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311667205 (or 311667195 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 46.

The spelling of 19946700352 in words is "nineteen billion, nine hundred forty-six million, seven hundred thousand, three hundred fifty-two".