20336516442 has 24 divisors (see below), whose sum is σ = 48068130240. Its totient is φ = 6162580680.

The previous prime is 20336516413. The next prime is 20336516489. The reversal of 20336516442 is 24461563302.

20336516442 is a `hidden beast` number, since 2 + 0 + 3 + 3 + 6 + 5 + 1 + 644 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 20336516397 and 20336516406.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51354642 + ... + 51355037.

It is an arithmetic number, because the mean of its divisors is an integer number (2002838760).

Almost surely, 2^20336516442 is an apocalyptic number.

20336516442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20336516442 is an abundant number, since it is smaller than the sum of its proper divisors (27731613798).

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

20336516442 is a wasteful number, since it uses less digits than its factorization.

20336516442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102709698 (or 102709695 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The spelling of 20336516442 in words is "twenty billion, three hundred thirty-six million, five hundred sixteen thousand, four hundred forty-two".