2153663561411 has 4 divisors (see below), whose sum is σ = 2153813751024. Its totient is φ = 2153513371800.

The previous prime is 2153663561389. The next prime is 2153663561477. The reversal of 2153663561411 is 1141653663512.

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

It is a cyclic number.

It is not a de Polignac number, because 2153663561411 - 2²² = 2153659367107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2153663561911) 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, 75073295 + ... + 75101976.

It is an arithmetic number, because the mean of its divisors is an integer number (538453437756).

Almost surely, 2^{2153663561411} is an apocalyptic number.

2153663561411 is a deficient number, since it is larger than the sum of its proper divisors (150189613).

2153663561411 is a wasteful number, since it uses less digits than its factorization.

2153663561411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150189612.

The product of its digits is 388800, while the sum is 44.

The spelling of 2153663561411 in words is "two trillion, one hundred fifty-three billion, six hundred sixty-three million, five hundred sixty-one thousand, four hundred eleven".