4156534330542 has 128 divisors (see below), whose sum is σ = 10202503288320. Its totient is φ = 1243812683520.

The previous prime is 4156534330541. The next prime is 4156534330591. The reversal of 4156534330542 is 2450334356514.

4156534330542 is a `hidden beast` number, since 4 + 1 + 5 + 65 + 3 + 43 + 3 + 0 + 542 = 666.

It is a super-2 number, since 2×4156534330542² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4156534330541) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 115003498 + ... + 115039634.

It is an arithmetic number, because the mean of its divisors is an integer number (79707056940).

Almost surely, 2^{4156534330542} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4156534330542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5101251644160).

4156534330542 is an abundant number, since it is smaller than the sum of its proper divisors (6045968957778).

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

4156534330542 is a wasteful number, since it uses less digits than its factorization.

4156534330542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38575 (or 38569 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 45.

The spelling of 4156534330542 in words is "four trillion, one hundred fifty-six billion, five hundred thirty-four million, three hundred thirty thousand, five hundred forty-two".