4006640653052 has 24 divisors (see below), whose sum is σ = 7320943951776. Its totient is φ = 1915048803008.

The previous prime is 4006640653031. The next prime is 4006640653069. The reversal of 4006640653052 is 2503560466004.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13151303 + ... + 13452510.

It is an arithmetic number, because the mean of its divisors is an integer number (305039331324).

Almost surely, 2^{4006640653052} is an apocalyptic number.

It is an amenable number.

4006640653052 is a deficient number, since it is larger than the sum of its proper divisors (3314303298724).

4006640653052 is a wasteful number, since it uses less digits than its factorization.

4006640653052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26605477 (or 26605475 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 41.

The spelling of 4006640653052 in words is "four trillion, six billion, six hundred forty million, six hundred fifty-three thousand, fifty-two".