11611610663021 has 8 divisors (see below), whose sum is σ = 11725097017920. Its totient is φ = 11498138775072.

The previous prime is 11611610662963. The next prime is 11611610663041. The reversal of 11611610663021 is 12036601611611.

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 11611610663021 - 2¹⁴ = 11611610646637 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 (11611610663041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2000120 + ... + 5217633.

It is an arithmetic number, because the mean of its divisors is an integer number (1465637127240).

Almost surely, 2^{11611610663021} is an apocalyptic number.

It is an amenable number.

11611610663021 is a deficient number, since it is larger than the sum of its proper divisors (113486354899).

11611610663021 is a wasteful number, since it uses less digits than its factorization.

11611610663021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7233475.

The product of its (nonzero) digits is 7776, while the sum is 35.

The spelling of 11611610663021 in words is "eleven trillion, six hundred eleven billion, six hundred ten million, six hundred sixty-three thousand, twenty-one".