4365121156641 has 48 divisors (see below), whose sum is σ = 7319859176448. Its totient is φ = 2455032232800.

The previous prime is 4365121156639. The next prime is 4365121156651. The reversal of 4365121156641 is 1466511215634.

4365121156641 is a `hidden beast` number, since 4 + 3 + 65 + 1 + 21 + 1 + 566 + 4 + 1 = 666.

It is not a de Polignac number, because 4365121156641 - 2¹ = 4365121156639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4365121156651) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1794406 + ... + 3456896.

It is an arithmetic number, because the mean of its divisors is an integer number (152497066176).

Almost surely, 2^{4365121156641} is an apocalyptic number.

It is an amenable number.

4365121156641 is a deficient number, since it is larger than the sum of its proper divisors (2954738019807).

4365121156641 is a wasteful number, since it uses less digits than its factorization.

4365121156641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663162 (or 1663159 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The spelling of 4365121156641 in words is "four trillion, three hundred sixty-five billion, one hundred twenty-one million, one hundred fifty-six thousand, six hundred forty-one".