3640657225550 has 12 divisors (see below), whose sum is σ = 6771622439616. Its totient is φ = 1456262890200.

The previous prime is 3640657225489. The next prime is 3640657225567. The reversal of 3640657225550 is 555227560463.

3640657225550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (50), and also a Moran number because the ratio is a prime number: 72813144511 = 3640657225550 / (3 + 6 + 4 + 0 + 6 + 5 + 7 + 2 + 2 + 5 + 5 + 5 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36406572206 + ... + 36406572305.

It is an arithmetic number, because the mean of its divisors is an integer number (564301869968).

Almost surely, 2^{3640657225550} is an apocalyptic number.

3640657225550 is a deficient number, since it is larger than the sum of its proper divisors (3130965214066).

3640657225550 is a wasteful number, since it uses less digits than its factorization.

3640657225550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72813144523 (or 72813144518 counting only the distinct ones).

The product of its (nonzero) digits is 7560000, while the sum is 50.

The spelling of 3640657225550 in words is "three trillion, six hundred forty billion, six hundred fifty-seven million, two hundred twenty-five thousand, five hundred fifty".