42660985401 has 12 divisors (see below), whose sum is σ = 61623434340. Its totient is φ = 28439728800.

The previous prime is 42660985337. The next prime is 42660985403. The reversal of 42660985401 is 10458906624.

42660985401 is a `hidden beast` number, since 42 + 6 + 60 + 9 + 8 + 540 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 29842217001 + 12818768400 = 172749^2 + 113220^2 .

It is not a de Polignac number, because 42660985401 - 2⁶ = 42660985337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42660985403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 322615 + ... + 435203.

It is an arithmetic number, because the mean of its divisors is an integer number (5135286195).

Almost surely, 2^42660985401 is an apocalyptic number.

It is an amenable number.

42660985401 is a deficient number, since it is larger than the sum of its proper divisors (18962448939).

42660985401 is a wasteful number, since it uses less digits than its factorization.

42660985401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154696 (or 154693 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 42660985401 in words is "forty-two billion, six hundred sixty million, nine hundred eighty-five thousand, four hundred one".