11661262053 has 8 divisors (see below), whose sum is σ = 17769542208. Its totient is φ = 6663578304.

The previous prime is 11661262049. The next prime is 11661262057. The reversal of 11661262053 is 35026216611.

It is an interprime number because it is at equal distance from previous prime (11661262049) and next prime (11661262057).

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

It is not a de Polignac number, because 11661262053 - 2² = 11661262049 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11661262057) 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, 277649076 + ... + 277649117.

It is an arithmetic number, because the mean of its divisors is an integer number (2221192776).

Almost surely, 2^11661262053 is an apocalyptic number.

It is an amenable number.

11661262053 is a deficient number, since it is larger than the sum of its proper divisors (6108280155).

11661262053 is an equidigital number, since it uses as much as digits as its factorization.

11661262053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555298203.

The product of its (nonzero) digits is 12960, while the sum is 33.

Adding to 11661262053 its reverse (35026216611), we get a palindrome (46687478664).

The spelling of 11661262053 in words is "eleven billion, six hundred sixty-one million, two hundred sixty-two thousand, fifty-three".