645352051663151 has 8 divisors (see below), whose sum is σ = 737545404130080. Its totient is φ = 553158749753568.

The previous prime is 645352051663147. The next prime is 645352051663211. The reversal of 645352051663151 is 151366150253546.

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

It is not a de Polignac number, because 645352051663151 - 2² = 645352051663147 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 645352051663093 and 645352051663102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (645352051663351) 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, 20509685 + ... + 41368481.

It is an arithmetic number, because the mean of its divisors is an integer number (92193175516260).

Almost surely, 2^{645352051663151} is an apocalyptic number.

645352051663151 is a deficient number, since it is larger than the sum of its proper divisors (92193352466929).

645352051663151 is a wasteful number, since it uses less digits than its factorization.

645352051663151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25278673.

The product of its (nonzero) digits is 9720000, while the sum is 53.

The spelling of 645352051663151 in words is "six hundred forty-five trillion, three hundred fifty-two billion, fifty-one million, six hundred sixty-three thousand, one hundred fifty-one".