653644016552106 has 64 divisors (see below), whose sum is σ = 1452909387202560. Its totient is φ = 217826274040560.

The previous prime is 653644016552039. The next prime is 653644016552113. The reversal of 653644016552106 is 601255610446356.

653644016552106 is a `hidden beast` number, since 6 + 5 + 3 + 64 + 4 + 0 + 16 + 552 + 10 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7229970355 + ... + 7230060761.

It is an arithmetic number, because the mean of its divisors is an integer number (22701709175040).

Almost surely, 2^{653644016552106} is an apocalyptic number.

653644016552106 is an abundant number, since it is smaller than the sum of its proper divisors (799265370650454).

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

653644016552106 is a wasteful number, since it uses less digits than its factorization.

653644016552106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122776 (or 122770 counting only the distinct ones).

The product of its (nonzero) digits is 15552000, while the sum is 54.

The spelling of 653644016552106 in words is "six hundred fifty-three trillion, six hundred forty-four billion, sixteen million, five hundred fifty-two thousand, one hundred six".