6651206552 has 32 divisors (see below), whose sum is σ = 12674798400. Its totient is φ = 3271567104.

The previous prime is 6651206533. The next prime is 6651206567. The reversal of 6651206552 is 2556021566.

It is a happy number.

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, 156068 + ... + 194060.

It is an arithmetic number, because the mean of its divisors is an integer number (396087450).

Almost surely, 2^6651206552 is an apocalyptic number.

It is an amenable number.

6651206552 is a deficient number, since it is larger than the sum of its proper divisors (6023591848).

6651206552 is a wasteful number, since it uses less digits than its factorization.

6651206552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38355 (or 38351 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 38.

The square root of 6651206552 is about 81554.9296609347. The cubic root of 6651206552 is about 1880.6160792104.

The spelling of 6651206552 in words is "six billion, six hundred fifty-one million, two hundred six thousand, five hundred fifty-two".