2106537436558 has 4 divisors (see below), whose sum is σ = 3159806154840. Its totient is φ = 1053268718278.

The previous prime is 2106537436519. The next prime is 2106537436559. The reversal of 2106537436558 is 8556347356012.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 2106537436499 and 2106537436508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2106537436559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 526634359138 + ... + 526634359141.

It is an arithmetic number, because the mean of its divisors is an integer number (789951538710).

Almost surely, 2^{2106537436558} is an apocalyptic number.

2106537436558 is a deficient number, since it is larger than the sum of its proper divisors (1053268718282).

2106537436558 is a wasteful number, since it uses less digits than its factorization.

2106537436558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053268718281.

The product of its (nonzero) digits is 18144000, while the sum is 55.

The spelling of 2106537436558 in words is "two trillion, one hundred six billion, five hundred thirty-seven million, four hundred thirty-six thousand, five hundred fifty-eight".