11521870063199 has 16 divisors (see below), whose sum is σ = 12101091837120. Its totient is φ = 10949330515200.

The previous prime is 11521870063157. The next prime is 11521870063201. The reversal of 11521870063199 is 99136007812511.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11521870063199 is a prime.

It is a super-2 number, since 2×11521870063199² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11521870063199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11521870063799) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1362467 + ... + 4989995.

It is an arithmetic number, because the mean of its divisors is an integer number (756318239820).

Almost surely, 2^{11521870063199} is an apocalyptic number.

11521870063199 is a deficient number, since it is larger than the sum of its proper divisors (579221773921).

11521870063199 is a wasteful number, since it uses less digits than its factorization.

11521870063199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3628450.

The product of its (nonzero) digits is 816480, while the sum is 53.

The spelling of 11521870063199 in words is "eleven trillion, five hundred twenty-one billion, eight hundred seventy million, sixty-three thousand, one hundred ninety-nine".