1557135360001 has 4 divisors (see below), whose sum is σ = 1676915003092. Its totient is φ = 1437355716912.

The previous prime is 1557135359971. The next prime is 1557135360013. The reversal of 1557135360001 is 1000635317551.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1066541580225 + 490593779776 = 1032735^2 + 700424^2 .

It is a cyclic number.

It is not a de Polignac number, because 1557135360001 - 2¹⁹ = 1557134835713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1557135360031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59889821526 + ... + 59889821551.

It is an arithmetic number, because the mean of its divisors is an integer number (419228750773).

It is a Proth number, since it is equal to 185625 ⋅ 2²³ + 1 and 185625 < 2²³.

Almost surely, 2^{1557135360001} is an apocalyptic number.

It is an amenable number.

1557135360001 is a deficient number, since it is larger than the sum of its proper divisors (119779643091).

1557135360001 is a wasteful number, since it uses less digits than its factorization.

1557135360001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119779643090.

The product of its (nonzero) digits is 47250, while the sum is 37.

The spelling of 1557135360001 in words is "one trillion, five hundred fifty-seven billion, one hundred thirty-five million, three hundred sixty thousand, one".