42660650601 has 6 divisors (see below), whose sum is σ = 61620939770. Its totient is φ = 28440433728.

The previous prime is 42660650563. The next prime is 42660650623. The reversal of 42660650601 is 10605606624.

It is a happy number.

42660650601 is a `hidden beast` number, since 42 + 6 + 6 + 0 + 6 + 5 + 0 + 601 = 666.

It can be written as a sum of positive squares in only one way, i.e., 40120490601 + 2540160000 = 200301^2 + 50400^2 .

It is not a de Polignac number, because 42660650601 - 2²⁹ = 42123779689 is a prime.

It is a super-2 number, since 2×42660650601² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42660650801) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2370036136 + ... + 2370036153.

Almost surely, 2^42660650601 is an apocalyptic number.

It is an amenable number.

42660650601 is a deficient number, since it is larger than the sum of its proper divisors (18960289169).

42660650601 is a wasteful number, since it uses less digits than its factorization.

42660650601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4740072295 (or 4740072292 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 42660650601 in words is "forty-two billion, six hundred sixty million, six hundred fifty thousand, six hundred one".