20116762123542 has 64 divisors (see below), whose sum is σ = 46157247360000. Its totient is φ = 5725641490560.

The previous prime is 20116762123499. The next prime is 20116762123559. The reversal of 20116762123542 is 24532126761102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 20116762123494 and 20116762123503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106343959 + ... + 106532957.

It is an arithmetic number, because the mean of its divisors is an integer number (721206990000).

Almost surely, 2^{20116762123542} is an apocalyptic number.

20116762123542 is an abundant number, since it is smaller than the sum of its proper divisors (26040485236458).

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

20116762123542 is a wasteful number, since it uses less digits than its factorization.

20116762123542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198701.

The product of its (nonzero) digits is 241920, while the sum is 42.

Adding to 20116762123542 its reverse (24532126761102), we get a palindrome (44648888884644).

The spelling of 20116762123542 in words is "twenty trillion, one hundred sixteen billion, seven hundred sixty-two million, one hundred twenty-three thousand, five hundred forty-two".