2011316100661 has 16 divisors (see below), whose sum is σ = 2378057466240. Its totient is φ = 1664434699200.

The previous prime is 2011316100613. The next prime is 2011316100721. The reversal of 2011316100661 is 1660016131102.

It is not a de Polignac number, because 2011316100661 - 2¹⁹ = 2011315576373 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 (2011316100061) 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, 3082635 + ... + 3677671.

It is an arithmetic number, because the mean of its divisors is an integer number (148628591640).

Almost surely, 2^{2011316100661} is an apocalyptic number.

It is an amenable number.

2011316100661 is a deficient number, since it is larger than the sum of its proper divisors (366741365579).

2011316100661 is a wasteful number, since it uses less digits than its factorization.

2011316100661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611724.

The product of its (nonzero) digits is 1296, while the sum is 28.

The spelling of 2011316100661 in words is "two trillion, eleven billion, three hundred sixteen million, one hundred thousand, six hundred sixty-one".