645415010445 has 16 divisors (see below), whose sum is σ = 1037294802432. Its totient is φ = 342677743680.

The previous prime is 645415010437. The next prime is 645415010453. The reversal of 645415010445 is 544010514546.

It is an interprime number because it is at equal distance from previous prime (645415010437) and next prime (645415010453).

It is not a de Polignac number, because 645415010445 - 2³ = 645415010437 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96471246 + ... + 96477935.

It is an arithmetic number, because the mean of its divisors is an integer number (64830925152).

Almost surely, 2^645415010445 is an apocalyptic number.

It is an amenable number.

645415010445 is a deficient number, since it is larger than the sum of its proper divisors (391879791987).

645415010445 is a wasteful number, since it uses less digits than its factorization.

645415010445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192949412.

The product of its (nonzero) digits is 192000, while the sum is 39.

The spelling of 645415010445 in words is "six hundred forty-five billion, four hundred fifteen million, ten thousand, four hundred forty-five".