20761050155 has 8 divisors (see below), whose sum is σ = 24914436000. Its totient is φ = 16608056256.

The previous prime is 20761050133. The next prime is 20761050161. The reversal of 20761050155 is 55105016702.

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

It is a cyclic number.

It is not a de Polignac number, because 20761050155 - 2⁸ = 20761049899 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34946 + ... + 206744.

It is an arithmetic number, because the mean of its divisors is an integer number (3114304500).

Almost surely, 2^20761050155 is an apocalyptic number.

20761050155 is a deficient number, since it is larger than the sum of its proper divisors (4153385845).

20761050155 is a wasteful number, since it uses less digits than its factorization.

20761050155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195973.

The product of its (nonzero) digits is 10500, while the sum is 32.

Adding to 20761050155 its reverse (55105016702), we get a palindrome (75866066857).

The spelling of 20761050155 in words is "twenty billion, seven hundred sixty-one million, fifty thousand, one hundred fifty-five".