1553616864312 has 64 divisors (see below), whose sum is σ = 4120658227200. Its totient is φ = 486752716800.

The previous prime is 1553616864307. The next prime is 1553616864313. The reversal of 1553616864312 is 2134686163551.

It is a happy number.

It is a super-2 number, since 2×1553616864312² (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 (1553616864313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13355689 + ... + 13471512.

It is an arithmetic number, because the mean of its divisors is an integer number (64385284800).

Almost surely, 2^{1553616864312} is an apocalyptic number.

1553616864312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1553616864312 is an abundant number, since it is smaller than the sum of its proper divisors (2567041362888).

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

1553616864312 is a wasteful number, since it uses less digits than its factorization.

1553616864312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26827356 (or 26827352 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 51.

The spelling of 1553616864312 in words is "one trillion, five hundred fifty-three billion, six hundred sixteen million, eight hundred sixty-four thousand, three hundred twelve".