2116646236646 has 16 divisors (see below), whose sum is σ = 3241009698048. Its totient is φ = 1036507101000.

The previous prime is 2116646236619. The next prime is 2116646236667. The reversal of 2116646236646 is 6466326466112.

It is a super-2 number, since 2×2116646236646² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49336040 + ... + 49378923.

It is an arithmetic number, because the mean of its divisors is an integer number (202563106128).

Almost surely, 2^{2116646236646} is an apocalyptic number.

2116646236646 is a deficient number, since it is larger than the sum of its proper divisors (1124363461402).

2116646236646 is a wasteful number, since it uses less digits than its factorization.

2116646236646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98715187.

The product of its digits is 8957952, while the sum is 53.

The spelling of 2116646236646 in words is "two trillion, one hundred sixteen billion, six hundred forty-six million, two hundred thirty-six thousand, six hundred forty-six".