40655370013 has 2 divisors, whose sum is σ = 40655370014. Its totient is φ = 40655370012.

The previous prime is 40655369999. The next prime is 40655370029. The reversal of 40655370013 is 31007355604.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25412504569 + 15242865444 = 159413^2 + 123462^2 .

It is a cyclic number.

It is not a de Polignac number, because 40655370013 - 2¹⁷ = 40655238941 is a prime.

It is a super-2 number, since 2×40655370013² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40655370083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20327685006 + 20327685007.

It is an arithmetic number, because the mean of its divisors is an integer number (20327685007).

Almost surely, 2^40655370013 is an apocalyptic number.

It is an amenable number.

40655370013 is a deficient number, since it is larger than the sum of its proper divisors (1).

40655370013 is an equidigital number, since it uses as much as digits as its factorization.

40655370013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37800, while the sum is 34.

The spelling of 40655370013 in words is "forty billion, six hundred fifty-five million, three hundred seventy thousand, thirteen".