1001616655611 has 16 divisors (see below), whose sum is σ = 1568965950720. Its totient is φ = 560344981920.

The previous prime is 1001616655609. The next prime is 1001616655621. The reversal of 1001616655611 is 1165566161001.

It is not a de Polignac number, because 1001616655611 - 2¹ = 1001616655609 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 1001616655611.

It is not an unprimeable number, because it can be changed into a prime (1001616655621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1167384951 + ... + 1167385808.

It is an arithmetic number, because the mean of its divisors is an integer number (98060371920).

Almost surely, 2^{1001616655611} is an apocalyptic number.

1001616655611 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1001616655611 is a deficient number, since it is larger than the sum of its proper divisors (567349295109).

1001616655611 is a wasteful number, since it uses less digits than its factorization.

1001616655611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2334770786.

The product of its (nonzero) digits is 32400, while the sum is 39.

The spelling of 1001616655611 in words is "one trillion, one billion, six hundred sixteen million, six hundred fifty-five thousand, six hundred eleven".