40660062397 has 8 divisors (see below), whose sum is σ = 41086294200. Its totient is φ = 40233974784.

The previous prime is 40660062389. The next prime is 40660062407. The reversal of 40660062397 is 79326006604.

It can be written as a sum of positive squares in 4 ways, for example, as 2239750276 + 38420312121 = 47326^2 + 196011^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40660062397 - 2³ = 40660062389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40660062367) 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, 586929 + ... + 652537.

It is an arithmetic number, because the mean of its divisors is an integer number (5135786775).

Almost surely, 2^40660062397 is an apocalyptic number.

It is an amenable number.

40660062397 is a deficient number, since it is larger than the sum of its proper divisors (426231803).

40660062397 is an equidigital number, since it uses as much as digits as its factorization.

40660062397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72095.

The product of its (nonzero) digits is 326592, while the sum is 43.

The spelling of 40660062397 in words is "forty billion, six hundred sixty million, sixty-two thousand, three hundred ninety-seven".