11621683151 has 4 divisors (see below), whose sum is σ = 12515658792. Its totient is φ = 10727707512.

The previous prime is 11621683141. The next prime is 11621683153. The reversal of 11621683151 is 15138612611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15138612611 = 111781 ⋅135431.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11621683151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11621683153) 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, 446987801 + ... + 446987826.

It is an arithmetic number, because the mean of its divisors is an integer number (3128914698).

Almost surely, 2^11621683151 is an apocalyptic number.

11621683151 is a deficient number, since it is larger than the sum of its proper divisors (893975641).

11621683151 is an equidigital number, since it uses as much as digits as its factorization.

11621683151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893975640.

The product of its digits is 8640, while the sum is 35.

The spelling of 11621683151 in words is "eleven billion, six hundred twenty-one million, six hundred eighty-three thousand, one hundred fifty-one".