1551655600601 has 8 divisors (see below), whose sum is σ = 1608583302144. Its totient is φ = 1495157542560.

The previous prime is 1551655600589. The next prime is 1551655600679. The reversal of 1551655600601 is 1060065561551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1551655600601 is a prime.

It is a super-2 number, since 2×1551655600601² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1551655600301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107403521 + ... + 107417966.

It is an arithmetic number, because the mean of its divisors is an integer number (201072912768).

Almost surely, 2^{1551655600601} is an apocalyptic number.

It is an amenable number.

1551655600601 is a deficient number, since it is larger than the sum of its proper divisors (56927701543).

1551655600601 is a wasteful number, since it uses less digits than its factorization.

1551655600601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214821751.

The product of its (nonzero) digits is 135000, while the sum is 41.

The spelling of 1551655600601 in words is "one trillion, five hundred fifty-one billion, six hundred fifty-five million, six hundred thousand, six hundred one".