20696246392 has 8 divisors (see below), whose sum is σ = 38805462000. Its totient is φ = 10348123192.

The previous prime is 20696246353. The next prime is 20696246491. The reversal of 20696246392 is 29364269602.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×20696246392² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1293515392 + ... + 1293515407.

It is an arithmetic number, because the mean of its divisors is an integer number (4850682750).

Almost surely, 2^20696246392 is an apocalyptic number.

It is an amenable number.

20696246392 is a deficient number, since it is larger than the sum of its proper divisors (18109215608).

20696246392 is a wasteful number, since it uses less digits than its factorization.

20696246392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2587030805 (or 2587030801 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 49.

The spelling of 20696246392 in words is "twenty billion, six hundred ninety-six million, two hundred forty-six thousand, three hundred ninety-two".