645455102601 has 8 divisors (see below), whose sum is σ = 861031383264. Its totient is φ = 430091111840.

The previous prime is 645455102573. The next prime is 645455102693. The reversal of 645455102601 is 106201554546.

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 645455102601 - 2⁵ = 645455102569 is a prime.

It is a super-2 number, since 2×645455102601² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 645455102601.

It is not an unprimeable number, because it can be changed into a prime (645455122601) 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, 53065380 + ... + 53077541.

It is an arithmetic number, because the mean of its divisors is an integer number (107628922908).

Almost surely, 2^645455102601 is an apocalyptic number.

It is an amenable number.

645455102601 is a deficient number, since it is larger than the sum of its proper divisors (215576280663).

645455102601 is a wasteful number, since it uses less digits than its factorization.

645455102601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106144951.

The product of its (nonzero) digits is 144000, while the sum is 39.

The spelling of 645455102601 in words is "six hundred forty-five billion, four hundred fifty-five million, one hundred two thousand, six hundred one".