1557116963599 has 8 divisors (see below), whose sum is σ = 1564650061040. Its totient is φ = 1549592726400.

The previous prime is 1557116963593. The next prime is 1557116963651. The reversal of 1557116963599 is 9953696117551.

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

It is a cyclic number.

It is not a de Polignac number, because 1557116963599 - 2¹¹ = 1557116961551 is a prime.

It is a super-2 number, since 2×1557116963599² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1557116963593) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1862592 + ... + 2565829.

It is an arithmetic number, because the mean of its divisors is an integer number (195581257630).

Almost surely, 2^{1557116963599} is an apocalyptic number.

1557116963599 is a deficient number, since it is larger than the sum of its proper divisors (7533097441).

1557116963599 is a wasteful number, since it uses less digits than its factorization.

1557116963599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4430121.

The product of its digits is 68890500, while the sum is 67.

The spelling of 1557116963599 in words is "one trillion, five hundred fifty-seven billion, one hundred sixteen million, nine hundred sixty-three thousand, five hundred ninety-nine".