11420228716542 has 24 divisors (see below), whose sum is σ = 25660266993816. Its totient is φ = 3806742905352.

The previous prime is 11420228716517. The next prime is 11420228716601. The reversal of 11420228716542 is 24561782202411.

11420228716542 is a `hidden beast` number, since 1 + 1 + 4 + 2 + 0 + 22 + 87 + 1 + 6 + 542 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11749206013 + ... + 11749206984.

It is an arithmetic number, because the mean of its divisors is an integer number (1069177791409).

Almost surely, 2^{11420228716542} is an apocalyptic number.

11420228716542 is an abundant number, since it is smaller than the sum of its proper divisors (14240038277274).

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

11420228716542 is an equidigital number, since it uses as much as digits as its factorization.

11420228716542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23498413014 (or 23498413002 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The spelling of 11420228716542 in words is "eleven trillion, four hundred twenty billion, two hundred twenty-eight million, seven hundred sixteen thousand, five hundred forty-two".