2101552424540 has 24 divisors (see below), whose sum is σ = 4413957665040. Its totient is φ = 840488098688.

The previous prime is 2101552424537. The next prime is 2101552424563. The reversal of 2101552424540 is 454242551012.

It is a self number, because there is not a number n which added to its sum of digits gives 2101552424540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8174702 + ... + 8427861.

It is an arithmetic number, because the mean of its divisors is an integer number (183914902710).

Almost surely, 2^{2101552424540} is an apocalyptic number.

2101552424540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2101552424540 is an abundant number, since it is smaller than the sum of its proper divisors (2312405240500).

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

2101552424540 is a wasteful number, since it uses less digits than its factorization.

2101552424540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16608901 (or 16608899 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 35.

Adding to 2101552424540 its reverse (454242551012), we get a palindrome (2555794975552).

The spelling of 2101552424540 in words is "two trillion, one hundred one billion, five hundred fifty-two million, four hundred twenty-four thousand, five hundred forty".