6651565161052 has 48 divisors (see below), whose sum is σ = 13503358156288. Its totient is φ = 2807775368640.

The previous prime is 6651565161041. The next prime is 6651565161053. The reversal of 6651565161052 is 2501615651566.

It is a junction number, because it is equal to n+sod(n) for n = 6651565160987 and 6651565161005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6651565161053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15206953 + ... + 15638239.

Almost surely, 2^{6651565161052} is an apocalyptic number.

It is an amenable number.

6651565161052 is an abundant number, since it is smaller than the sum of its proper divisors (6851792995236).

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

6651565161052 is a wasteful number, since it uses less digits than its factorization.

6651565161052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439586 (or 439584 counting only the distinct ones).

The product of its (nonzero) digits is 1620000, while the sum is 49.

The spelling of 6651565161052 in words is "six trillion, six hundred fifty-one billion, five hundred sixty-five million, one hundred sixty-one thousand, fifty-two".