1557207016147 has 4 divisors (see below), whose sum is σ = 1557211757976. Its totient is φ = 1557202274320.

The previous prime is 1557207016139. The next prime is 1557207016159. The reversal of 1557207016147 is 7416107027551.

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

It is a cyclic number.

It is not a de Polignac number, because 1557207016147 - 2³ = 1557207016139 is a prime.

It is a super-2 number, since 2×1557207016147² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1557207016097 and 1557207016106.

It is not an unprimeable number, because it can be changed into a prime (1557207016187) 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 3 ways as a sum of consecutive naturals, for example, 1838458 + ... + 2548399.

It is an arithmetic number, because the mean of its divisors is an integer number (389302939494).

Almost surely, 2^{1557207016147} is an apocalyptic number.

1557207016147 is a deficient number, since it is larger than the sum of its proper divisors (4741829).

1557207016147 is an equidigital number, since it uses as much as digits as its factorization.

1557207016147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4741828.

The product of its (nonzero) digits is 411600, while the sum is 46.

The spelling of 1557207016147 in words is "one trillion, five hundred fifty-seven billion, two hundred seven million, sixteen thousand, one hundred forty-seven".