65765631630 has 16 divisors (see below), whose sum is σ = 157837515984. Its totient is φ = 17537501760.

The previous prime is 65765631619. The next prime is 65765631641. The reversal of 65765631630 is 3613656756.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (65765631619) and next prime (65765631641).

It is a super-3 number, since 3×65765631630³ (a number of 33 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 65765631630.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1096093831 + ... + 1096093890.

It is an arithmetic number, because the mean of its divisors is an integer number (9864844749).

Almost surely, 2^65765631630 is an apocalyptic number.

65765631630 is an abundant number, since it is smaller than the sum of its proper divisors (92071884354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65765631630 is a wasteful number, since it uses less digits than its factorization.

65765631630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2192187731.

The product of its (nonzero) digits is 2041200, while the sum is 48.

The spelling of 65765631630 in words is "sixty-five billion, seven hundred sixty-five million, six hundred thirty-one thousand, six hundred thirty".