2101454105616 has 120 divisors (see below), whose sum is σ = 6334656991520. Its totient is φ = 648184094208.

The previous prime is 2101454105551. The next prime is 2101454105669. The reversal of 2101454105616 is 6165014541012.

2101454105616 is a `hidden beast` number, since 2 + 10 + 1 + 45 + 41 + 0 + 561 + 6 = 666.

It is a super-2 number, since 2×2101454105616² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8813461 + ... + 9048756.

Almost surely, 2^{2101454105616} is an apocalyptic number.

It is an amenable number.

2101454105616 is an abundant number, since it is smaller than the sum of its proper divisors (4233202885904).

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

2101454105616 is a wasteful number, since it uses less digits than its factorization.

2101454105616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17862293 (or 17862284 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

Adding to 2101454105616 its reverse (6165014541012), we get a palindrome (8266468646628).

The spelling of 2101454105616 in words is "two trillion, one hundred one billion, four hundred fifty-four million, one hundred five thousand, six hundred sixteen".