11020420436656 has 10 divisors (see below), whose sum is σ = 21352064596052. Its totient is φ = 5510210218320.

The previous prime is 11020420436653. The next prime is 11020420436659. The reversal of 11020420436656 is 65663402402011.

It is an interprime number because it is at equal distance from previous prime (11020420436653) and next prime (11020420436659).

It is not an unprimeable number, because it can be changed into a prime (11020420436653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 344388138630 + ... + 344388138661.

Almost surely, 2^{11020420436656} is an apocalyptic number.

11020420436656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11020420436656 is a deficient number, since it is larger than the sum of its proper divisors (10331644159396).

11020420436656 is an equidigital number, since it uses as much as digits as its factorization.

11020420436656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688776277299 (or 688776277293 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

Adding to 11020420436656 its reverse (65663402402011), we get a palindrome (76683822838667).

The spelling of 11020420436656 in words is "eleven trillion, twenty billion, four hundred twenty million, four hundred thirty-six thousand, six hundred fifty-six".