4006641405051 has 16 divisors (see below), whose sum is σ = 5993393835520. Its totient is φ = 2645161314120.

The previous prime is 4006641405049. The next prime is 4006641405073. The reversal of 4006641405051 is 1505041466004.

4006641405051 is a `hidden beast` number, since 4 + 0 + 0 + 6 + 6 + 4 + 140 + 505 + 1 = 666.

It is not a de Polignac number, because 4006641405051 - 2¹ = 4006641405049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4006641404997 and 4006641405015.

It is not an unprimeable number, because it can be changed into a prime (4006641400051) 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, 720357055 + ... + 720362616.

It is an arithmetic number, because the mean of its divisors is an integer number (374587114720).

Almost surely, 2^{4006641405051} is an apocalyptic number.

4006641405051 is a deficient number, since it is larger than the sum of its proper divisors (1986752430469).

4006641405051 is a wasteful number, since it uses less digits than its factorization.

4006641405051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440719783 (or 1440719777 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 4006641405051 in words is "four trillion, six billion, six hundred forty-one million, four hundred five thousand, fifty-one".