20506373111776 has 48 divisors (see below), whose sum is σ = 40533955277760. Its totient is φ = 10212057756160.

The previous prime is 20506373111723. The next prime is 20506373111797. The reversal of 20506373111776 is 67711137360502.

It is a super-2 number, since 2×20506373111776² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28977846 + ... + 29677066.

It is an arithmetic number, because the mean of its divisors is an integer number (844457401620).

Almost surely, 2^{20506373111776} is an apocalyptic number.

It is an amenable number.

20506373111776 is a deficient number, since it is larger than the sum of its proper divisors (20027582165984).

20506373111776 is a wasteful number, since it uses less digits than its factorization.

20506373111776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702907 (or 702899 counting only the distinct ones).

The product of its (nonzero) digits is 1111320, while the sum is 49.

The spelling of 20506373111776 in words is "twenty trillion, five hundred six billion, three hundred seventy-three million, one hundred eleven thousand, seven hundred seventy-six".