646653245035055 has 32 divisors (see below), whose sum is σ = 835880488243200. Its totient is φ = 478846219357440.

The previous prime is 646653245035043. The next prime is 646653245035079. The reversal of 646653245035055 is 550530542356646.

It is not a de Polignac number, because 646653245035055 - 2⁶ = 646653245034991 is a prime.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 646653245034985 and 646653245035003.

It is a congruent 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, 74318771 + ... + 82562619.

It is an arithmetic number, because the mean of its divisors is an integer number (26121265257600).

Almost surely, 2^{646653245035055} is an apocalyptic number.

646653245035055 is a deficient number, since it is larger than the sum of its proper divisors (189227243208145).

646653245035055 is a wasteful number, since it uses less digits than its factorization.

646653245035055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8265911.

The product of its (nonzero) digits is 194400000, while the sum is 59.

The spelling of 646653245035055 in words is "six hundred forty-six trillion, six hundred fifty-three billion, two hundred forty-five million, thirty-five thousand, fifty-five".