11451453540220 has 48 divisors (see below), whose sum is σ = 24129457934400. Its totient is φ = 4565080593920.

The previous prime is 11451453540209. The next prime is 11451453540251. The reversal of 11451453540220 is 2204535415411.

It is a super-2 number, since 2×11451453540220² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11451453540220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37347696 + ... + 37653064.

It is an arithmetic number, because the mean of its divisors is an integer number (502697040300).

Almost surely, 2^{11451453540220} is an apocalyptic number.

11451453540220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11451453540220 is an abundant number, since it is smaller than the sum of its proper divisors (12678004394180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11451453540220 is a wasteful number, since it uses less digits than its factorization.

11451453540220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311718 (or 311716 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 37.

Adding to 11451453540220 its reverse (2204535415411), we get a palindrome (13655988955631).

The spelling of 11451453540220 in words is "eleven trillion, four hundred fifty-one billion, four hundred fifty-three million, five hundred forty thousand, two hundred twenty".