11601817020144 has 160 divisors (see below), whose sum is σ = 36070471133760. Its totient is φ = 3549154931712.

The previous prime is 11601817020107. The next prime is 11601817020173. The reversal of 11601817020144 is 44102071810611.

It is a happy number.

11601817020144 is a `hidden beast` number, since 1 + 1 + 601 + 8 + 1 + 7 + 0 + 2 + 0 + 1 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 11601817020099 and 11601817020108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4999099 + ... + 6942234.

It is an arithmetic number, because the mean of its divisors is an integer number (225440444586).

Almost surely, 2^{11601817020144} is an apocalyptic number.

It is an amenable number.

11601817020144 is an abundant number, since it is smaller than the sum of its proper divisors (24468654113616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11601817020144 is a wasteful number, since it uses less digits than its factorization.

11601817020144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11941536 (or 11941524 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 36.

Adding to 11601817020144 its reverse (44102071810611), we get a palindrome (55703888830755).

The spelling of 11601817020144 in words is "eleven trillion, six hundred one billion, eight hundred seventeen million, twenty thousand, one hundred forty-four".