11601302640551 has 4 divisors (see below), whose sum is σ = 12493710535992. Its totient is φ = 10708894745112.

The previous prime is 11601302640527. The next prime is 11601302640677. The reversal of 11601302640551 is 15504620310611.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11601302640551 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 (11601302642551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 446203947701 + ... + 446203947726.

It is an arithmetic number, because the mean of its divisors is an integer number (3123427633998).

Almost surely, 2^{11601302640551} is an apocalyptic number.

11601302640551 is a deficient number, since it is larger than the sum of its proper divisors (892407895441).

11601302640551 is an equidigital number, since it uses as much as digits as its factorization.

11601302640551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892407895440.

The product of its (nonzero) digits is 21600, while the sum is 35.

The spelling of 11601302640551 in words is "eleven trillion, six hundred one billion, three hundred two million, six hundred forty thousand, five hundred fifty-one".