16203113604534 has 16 divisors (see below), whose sum is σ = 32406289396272. Its totient is φ = 5401027503648.

The previous prime is 16203113604533. The next prime is 16203113604539. The reversal of 16203113604534 is 43540631130261.

It is a junction number, because it is equal to n+sod(n) for n = 16203113604492 and 16203113604501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16203113604533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1229392 + ... + 5823884.

It is an arithmetic number, because the mean of its divisors is an integer number (2025393087267).

Almost surely, 2^{16203113604534} is an apocalyptic number.

16203113604534 is an abundant number, since it is smaller than the sum of its proper divisors (16203175791738).

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

16203113604534 is a wasteful number, since it uses less digits than its factorization.

16203113604534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5182271.

The product of its (nonzero) digits is 155520, while the sum is 39.

Adding to 16203113604534 its reverse (43540631130261), we get a palindrome (59743744734795).

The spelling of 16203113604534 in words is "sixteen trillion, two hundred three billion, one hundred thirteen million, six hundred four thousand, five hundred thirty-four".