2116635401045 has 16 divisors (see below), whose sum is σ = 2770936826112. Its totient is φ = 1539333053760.

The previous prime is 2116635401029. The next prime is 2116635401063. The reversal of 2116635401045 is 5401045366112.

It is not a de Polignac number, because 2116635401045 - 2⁴ = 2116635401029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1866539 + ... + 2777991.

It is an arithmetic number, because the mean of its divisors is an integer number (173183551632).

Almost surely, 2^{2116635401045} is an apocalyptic number.

It is an amenable number.

2116635401045 is a deficient number, since it is larger than the sum of its proper divisors (654301425067).

2116635401045 is a wasteful number, since it uses less digits than its factorization.

2116635401045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 953692.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 2116635401045 in words is "two trillion, one hundred sixteen billion, six hundred thirty-five million, four hundred one thousand, forty-five".