65690242810 has 16 divisors (see below), whose sum is σ = 125197874856. Its totient is φ = 24730444288.

The previous prime is 65690242801. The next prime is 65690242817. The reversal of 65690242810 is 1824209656.

It can be written as a sum of positive squares in 4 ways, for example, as 45081056329 + 20609186481 = 212323^2 + 143559^2 .

It is a super-2 number, since 2×65690242810² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65690242817) 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, 193206427 + ... + 193206766.

Almost surely, 2^65690242810 is an apocalyptic number.

65690242810 is a deficient number, since it is larger than the sum of its proper divisors (59507632046).

65690242810 is a wasteful number, since it uses less digits than its factorization.

65690242810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386413217.

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 65690242810 in words is "sixty-five billion, six hundred ninety million, two hundred forty-two thousand, eight hundred ten".