16536371542 has 4 divisors (see below), whose sum is σ = 24804557316. Its totient is φ = 8268185770.

The previous prime is 16536371539. The next prime is 16536371543. The reversal of 16536371542 is 24517363561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24517363561 = 1709 ⋅14346029.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16536371543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4134092884 + ... + 4134092887.

It is an arithmetic number, because the mean of its divisors is an integer number (6201139329).

Almost surely, 2^16536371542 is an apocalyptic number.

16536371542 is a deficient number, since it is larger than the sum of its proper divisors (8268185774).

16536371542 is an equidigital number, since it uses as much as digits as its factorization.

16536371542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8268185773.

The product of its digits is 453600, while the sum is 43.

The spelling of 16536371542 in words is "sixteen billion, five hundred thirty-six million, three hundred seventy-one thousand, five hundred forty-two".