2161515453101 has 8 divisors (see below), whose sum is σ = 2181032280000. Its totient is φ = 2142085176000.

The previous prime is 2161515453079. The next prime is 2161515453113. The reversal of 2161515453101 is 1013545151612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2161515453101 - 2⁶ = 2161515453037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2161515453301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21587276 + ... + 21687173.

It is an arithmetic number, because the mean of its divisors is an integer number (272629035000).

Almost surely, 2^{2161515453101} is an apocalyptic number.

It is an amenable number.

2161515453101 is a deficient number, since it is larger than the sum of its proper divisors (19516826899).

2161515453101 is a wasteful number, since it uses less digits than its factorization.

2161515453101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43274899.

The product of its (nonzero) digits is 18000, while the sum is 35.

The spelling of 2161515453101 in words is "two trillion, one hundred sixty-one billion, five hundred fifteen million, four hundred fifty-three thousand, one hundred one".