4002134166256 has 40 divisors (see below), whose sum is σ = 7758151509024. Its totient is φ = 2000030883840.

The previous prime is 4002134166221. The next prime is 4002134166259. The reversal of 4002134166256 is 6526614312004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4002134166259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 354573445 + ... + 354584731.

Almost surely, 2^{4002134166256} is an apocalyptic number.

It is an amenable number.

4002134166256 is a deficient number, since it is larger than the sum of its proper divisors (3756017342768).

4002134166256 is a wasteful number, since it uses less digits than its factorization.

4002134166256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20809 (or 20803 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 4002134166256 in words is "four trillion, two billion, one hundred thirty-four million, one hundred sixty-six thousand, two hundred fifty-six".