6665637503312 has 40 divisors (see below), whose sum is σ = 13060164988800. Its totient is φ = 3295274546432.

The previous prime is 6665637503309. The next prime is 6665637503341. The reversal of 6665637503312 is 2133057365666.

It is a super-3 number, since 3×6665637503312³ (a number of 39 digits) contains 333 as substring.

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, 88203239 + ... + 88278777.

It is an arithmetic number, because the mean of its divisors is an integer number (326504124720).

Almost surely, 2^{6665637503312} is an apocalyptic number.

It is an amenable number.

6665637503312 is a deficient number, since it is larger than the sum of its proper divisors (6394527485488).

6665637503312 is a wasteful number, since it uses less digits than its factorization.

6665637503312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137603 (or 137597 counting only the distinct ones).

The product of its (nonzero) digits is 12247200, while the sum is 53.

The spelling of 6665637503312 in words is "six trillion, six hundred sixty-five billion, six hundred thirty-seven million, five hundred three thousand, three hundred twelve".