20775775087702 has 16 divisors (see below), whose sum is σ = 31252543493472. Its totient is φ = 10358261717760.

The previous prime is 20775775087583. The next prime is 20775775087721. The reversal of 20775775087702 is 20778057757702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40858408 + ... + 41363764.

It is an arithmetic number, because the mean of its divisors is an integer number (1953283968342).

Almost surely, 2^{20775775087702} is an apocalyptic number.

20775775087702 is a deficient number, since it is larger than the sum of its proper divisors (10476768405770).

20775775087702 is a wasteful number, since it uses less digits than its factorization.

20775775087702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563943.

The product of its (nonzero) digits is 94119200, while the sum is 64.

The spelling of 20775775087702 in words is "twenty trillion, seven hundred seventy-five billion, seven hundred seventy-five million, eighty-seven thousand, seven hundred two".