11734727661220 has 48 divisors (see below), whose sum is σ = 24807036780288. Its totient is φ = 4662634550400.

The previous prime is 11734727661211. The next prime is 11734727661227. The reversal of 11734727661220 is 2216672743711.

It is a super-2 number, since 2×11734727661220² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11734727661227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110711569 + ... + 110817511.

It is an arithmetic number, because the mean of its divisors is an integer number (516813266256).

Almost surely, 2^{11734727661220} is an apocalyptic number.

11734727661220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11734727661220 is an abundant number, since it is smaller than the sum of its proper divisors (13072309119068).

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

11734727661220 is a wasteful number, since it uses less digits than its factorization.

11734727661220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142780 (or 142778 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 49.

The spelling of 11734727661220 in words is "eleven trillion, seven hundred thirty-four billion, seven hundred twenty-seven million, six hundred sixty-one thousand, two hundred twenty".