65600390401 has 32 divisors (see below), whose sum is σ = 84280025088. Its totient is φ = 49628842560.

The previous prime is 65600390399. The next prime is 65600390411. The reversal of 65600390401 is 10409300656.

It is a cyclic number.

It is not a de Polignac number, because 65600390401 - 2¹ = 65600390399 is a prime.

It is a super-2 number, since 2×65600390401² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65600390411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9605550 + ... + 9612376.

It is an arithmetic number, because the mean of its divisors is an integer number (2633750784).

Almost surely, 2^65600390401 is an apocalyptic number.

It is an amenable number.

65600390401 is a deficient number, since it is larger than the sum of its proper divisors (18679634687).

65600390401 is a wasteful number, since it uses less digits than its factorization.

65600390401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11461.

The product of its (nonzero) digits is 19440, while the sum is 34.

The spelling of 65600390401 in words is "sixty-five billion, six hundred million, three hundred ninety thousand, four hundred one".