2116650551535 has 24 divisors (see below), whose sum is σ = 3951081030624. Its totient is φ = 1042043348160.

The previous prime is 2116650551513. The next prime is 2116650551539. The reversal of 2116650551535 is 5351550566112.

2116650551535 is a `hidden beast` number, since 2 + 1 + 1 + 6 + 65 + 0 + 5 + 51 + 535 = 666.

It is not a de Polignac number, because 2116650551535 - 2²⁰ = 2116649502959 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2116650551539) 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, 1809102451 + ... + 1809103620.

It is an arithmetic number, because the mean of its divisors is an integer number (164628376276).

Almost surely, 2^{2116650551535} is an apocalyptic number.

2116650551535 is a deficient number, since it is larger than the sum of its proper divisors (1834430479089).

2116650551535 is a wasteful number, since it uses less digits than its factorization.

2116650551535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3618206095 (or 3618206092 counting only the distinct ones).

The product of its (nonzero) digits is 675000, while the sum is 45.

The spelling of 2116650551535 in words is "two trillion, one hundred sixteen billion, six hundred fifty million, five hundred fifty-one thousand, five hundred thirty-five".