1552002352661 has 2 divisors, whose sum is σ = 1552002352662. Its totient is φ = 1552002352660.

The previous prime is 1552002352643. The next prime is 1552002352729. The reversal of 1552002352661 is 1662532002551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1529451624100 + 22550728561 = 1236710^2 + 150169^2 .

It is a cyclic number.

It is not a de Polignac number, because 1552002352661 - 2¹⁴ = 1552002336277 is a prime.

It is a super-2 number, since 2×1552002352661² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1552002352361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 776001176330 + 776001176331.

It is an arithmetic number, because the mean of its divisors is an integer number (776001176331).

Almost surely, 2^{1552002352661} is an apocalyptic number.

It is an amenable number.

1552002352661 is a deficient number, since it is larger than the sum of its proper divisors (1).

1552002352661 is an equidigital number, since it uses as much as digits as its factorization.

1552002352661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108000, while the sum is 38.

The spelling of 1552002352661 in words is "one trillion, five hundred fifty-two billion, two million, three hundred fifty-two thousand, six hundred sixty-one".