1571233755216 has 40 divisors (see below), whose sum is σ = 4168723796704. Its totient is φ = 509589325440.

The previous prime is 1571233755191. The next prime is 1571233755271. The reversal of 1571233755216 is 6125573321751.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 442350070 + ... + 442353621.

Almost surely, 2^{1571233755216} is an apocalyptic number.

1571233755216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1571233755216 is an abundant number, since it is smaller than the sum of its proper divisors (2597490041488).

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

1571233755216 is a wasteful number, since it uses less digits than its factorization.

1571233755216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884703739 (or 884703733 counting only the distinct ones).

The product of its digits is 1323000, while the sum is 48.

The spelling of 1571233755216 in words is "one trillion, five hundred seventy-one billion, two hundred thirty-three million, seven hundred fifty-five thousand, two hundred sixteen".