652161271604 has 6 divisors (see below), whose sum is σ = 1141282225314. Its totient is φ = 326080635800.

The previous prime is 652161271603. The next prime is 652161271613. The reversal of 652161271604 is 406172161256.

It can be written as a sum of positive squares in only one way, i.e., 376590868900 + 275570402704 = 613670^2 + 524948^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (652161271603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81520158947 + ... + 81520158954.

It is an arithmetic number, because the mean of its divisors is an integer number (190213704219).

Almost surely, 2^652161271604 is an apocalyptic number.

It is an amenable number.

652161271604 is a deficient number, since it is larger than the sum of its proper divisors (489120953710).

652161271604 is a wasteful number, since it uses less digits than its factorization.

652161271604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163040317905 (or 163040317903 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 652161271604 in words is "six hundred fifty-two billion, one hundred sixty-one million, two hundred seventy-one thousand, six hundred four".