20696155963 has 8 divisors (see below), whose sum is σ = 25044088032. Its totient is φ = 16696058496.

The previous prime is 20696155939. The next prime is 20696155969. The reversal of 20696155963 is 36955169602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20696155963 - 2¹⁷ = 20696024891 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20696155963.

It is not an unprimeable number, because it can be changed into a prime (20696155969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86958520 + ... + 86958757.

It is an arithmetic number, because the mean of its divisors is an integer number (3130511004).

Almost surely, 2^20696155963 is an apocalyptic number.

20696155963 is a deficient number, since it is larger than the sum of its proper divisors (4347932069).

20696155963 is a wasteful number, since it uses less digits than its factorization.

20696155963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173917301.

The product of its (nonzero) digits is 2624400, while the sum is 52.

The spelling of 20696155963 in words is "twenty billion, six hundred ninety-six million, one hundred fifty-five thousand, nine hundred sixty-three".