1557116963598 has 32 divisors (see below), whose sum is σ = 3559321059840. Its totient is φ = 444865989600.

The previous prime is 1557116963593. The next prime is 1557116963651. The reversal of 1557116963598 is 8953696117551.

It is a super-2 number, since 2×1557116963598² (a number of 25 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 247378 + ... + 1781973.

It is an arithmetic number, because the mean of its divisors is an integer number (111228783120).

Almost surely, 2^{1557116963598} is an apocalyptic number.

1557116963598 is an abundant number, since it is smaller than the sum of its proper divisors (2002204096242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1557116963598 is a wasteful number, since it uses less digits than its factorization.

1557116963598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2047632.

The product of its digits is 61236000, while the sum is 66.

The spelling of 1557116963598 in words is "one trillion, five hundred fifty-seven billion, one hundred sixteen million, nine hundred sixty-three thousand, five hundred ninety-eight".