3999499455201 has 16 divisors (see below), whose sum is σ = 5340347203968. Its totient is φ = 2662493225600.

The previous prime is 3999499455143. The next prime is 3999499455221. The reversal of 3999499455201 is 1025549949993.

It is a cyclic number.

It is not a de Polignac number, because 3999499455201 - 2¹¹ = 3999499453153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3999499455221) 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, 18684955 + ... + 18897791.

It is an arithmetic number, because the mean of its divisors is an integer number (333771700248).

Almost surely, 2^{3999499455201} is an apocalyptic number.

It is an amenable number.

3999499455201 is a deficient number, since it is larger than the sum of its proper divisors (1340847748767).

3999499455201 is a wasteful number, since it uses less digits than its factorization.

3999499455201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221832.

The product of its (nonzero) digits is 141717600, while the sum is 69.

The spelling of 3999499455201 in words is "three trillion, nine hundred ninety-nine billion, four hundred ninety-nine million, four hundred fifty-five thousand, two hundred one".