2116242661401 has 24 divisors (see below), whose sum is σ = 3334740140160. Its totient is φ = 1282550258400.

The previous prime is 2116242661399. The next prime is 2116242661409. The reversal of 2116242661401 is 1041662426112.

2116242661401 is a `hidden beast` number, since 2 + 1 + 1 + 6 + 242 + 6 + 6 + 1 + 401 = 666.

It is not a de Polignac number, because 2116242661401 - 2¹ = 2116242661399 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2116242661409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7633231 + ... + 7905611.

It is an arithmetic number, because the mean of its divisors is an integer number (138947505840).

Almost surely, 2^{2116242661401} is an apocalyptic number.

It is an amenable number.

2116242661401 is a deficient number, since it is larger than the sum of its proper divisors (1218497478759).

2116242661401 is a wasteful number, since it uses less digits than its factorization.

2116242661401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350877 (or 350874 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

It can be divided in two parts, 211624 and 2661401, that added together give a square (2873025 = 1695²).

The spelling of 2116242661401 in words is "two trillion, one hundred sixteen billion, two hundred forty-two million, six hundred sixty-one thousand, four hundred one".