12065699734 has 32 divisors (see below), whose sum is σ = 20033961984. Its totient is φ = 5403977280.

The previous prime is 12065699699. The next prime is 12065699761. The reversal of 12065699734 is 43799656021.

It is a happy number.

It is a super-2 number, since 2×12065699734² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1961067 + ... + 1967209.

It is an arithmetic number, because the mean of its divisors is an integer number (626061312).

Almost surely, 2^12065699734 is an apocalyptic number.

12065699734 is a deficient number, since it is larger than the sum of its proper divisors (7968262250).

12065699734 is a wasteful number, since it uses less digits than its factorization.

12065699734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7452.

The product of its (nonzero) digits is 2449440, while the sum is 52.

The spelling of 12065699734 in words is "twelve billion, sixty-five million, six hundred ninety-nine thousand, seven hundred thirty-four".