2151116505053 has 4 divisors (see below), whose sum is σ = 2151119444640. Its totient is φ = 2151113565468.

The previous prime is 2151116505049. The next prime is 2151116505169. The reversal of 2151116505053 is 3505056111512.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2151116505053 - 2² = 2151116505049 is a prime.

It is a super-2 number, since 2×2151116505053² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151116508053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 591218 + ... + 2156796.

It is an arithmetic number, because the mean of its divisors is an integer number (537779861160).

Almost surely, 2^{2151116505053} is an apocalyptic number.

It is an amenable number.

2151116505053 is a deficient number, since it is larger than the sum of its proper divisors (2939587).

2151116505053 is a wasteful number, since it uses less digits than its factorization.

2151116505053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2939586.

The product of its (nonzero) digits is 22500, while the sum is 35.

The spelling of 2151116505053 in words is "two trillion, one hundred fifty-one billion, one hundred sixteen million, five hundred five thousand, fifty-three".