4145550520401 has 8 divisors (see below), whose sum is σ = 6141556326560. Its totient is φ = 2763700346916.

The previous prime is 4145550520369. The next prime is 4145550520493. The reversal of 4145550520401 is 1040250555414.

4145550520401 is a `hidden beast` number, since 4 + 1 + 45 + 5 + 50 + 520 + 40 + 1 = 666.

It is not a de Polignac number, because 4145550520401 - 2⁵ = 4145550520369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4145550520801) 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, 76769454055 + ... + 76769454108.

It is an arithmetic number, because the mean of its divisors is an integer number (767694540820).

Almost surely, 2^{4145550520401} is an apocalyptic number.

It is an amenable number.

4145550520401 is a deficient number, since it is larger than the sum of its proper divisors (1996005806159).

4145550520401 is a wasteful number, since it uses less digits than its factorization.

4145550520401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153538908172 (or 153538908166 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 36.

The spelling of 4145550520401 in words is "four trillion, one hundred forty-five billion, five hundred fifty million, five hundred twenty thousand, four hundred one".