640153602036325 has 24 divisors (see below), whose sum is σ = 856798541244800. Its totient is φ = 471651982695360.

The previous prime is 640153602036301. The next prime is 640153602036371. The reversal of 640153602036325 is 523630206351046.

It is not a de Polignac number, because 640153602036325 - 2²³ = 640153593647717 is a prime.

It is a super-3 number, since 3×640153602036325³ (a number of 45 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2243255265 + ... + 2243540614.

Almost surely, 2^{640153602036325} is an apocalyptic number.

640153602036325 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

640153602036325 is a deficient number, since it is larger than the sum of its proper divisors (216644939208475).

640153602036325 is a wasteful number, since it uses less digits than its factorization.

640153602036325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4486796341 (or 4486796336 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 46.

The spelling of 640153602036325 in words is "six hundred forty trillion, one hundred fifty-three billion, six hundred two million, thirty-six thousand, three hundred twenty-five".