645046653106101 has 8 divisors (see below), whose sum is σ = 897456213017280. Its totient is φ = 411334097632832.

The previous prime is 645046653106039. The next prime is 645046653106127. The reversal of 645046653106101 is 101601356640546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 645046653106101 - 2²⁶ = 645046585997237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (645046653106501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4674251109396 + ... + 4674251109533.

It is an arithmetic number, because the mean of its divisors is an integer number (112182026627160).

Almost surely, 2^{645046653106101} is an apocalyptic number.

It is an amenable number.

645046653106101 is a deficient number, since it is larger than the sum of its proper divisors (252409559911179).

645046653106101 is a wasteful number, since it uses less digits than its factorization.

645046653106101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9348502218955.

The product of its (nonzero) digits is 1555200, while the sum is 48.

The spelling of 645046653106101 in words is "six hundred forty-five trillion, forty-six billion, six hundred fifty-three million, one hundred six thousand, one hundred one".