640152203361 has 16 divisors (see below), whose sum is σ = 963238426560. Its totient is φ = 374592720320.

The previous prime is 640152203329. The next prime is 640152203377. The reversal of 640152203361 is 163302251046.

It is a cyclic number.

It is not a de Polignac number, because 640152203361 - 2⁵ = 640152203329 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (640152203311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 334456830 + ... + 334458743.

It is an arithmetic number, because the mean of its divisors is an integer number (60202401660).

Almost surely, 2^640152203361 is an apocalyptic number.

It is an amenable number.

640152203361 is a deficient number, since it is larger than the sum of its proper divisors (323086223199).

640152203361 is a wasteful number, since it uses less digits than its factorization.

640152203361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668915616.

The product of its (nonzero) digits is 25920, while the sum is 33.

The spelling of 640152203361 in words is "six hundred forty billion, one hundred fifty-two million, two hundred three thousand, three hundred sixty-one".