1611768013056 has 216 divisors, whose sum is σ = 4995795342720. Its totient is φ = 498149388288.

The previous prime is 1611768013043. The next prime is 1611768013069. The reversal of 1611768013056 is 6503108671161.

It is an interprime number because it is at equal distance from previous prime (1611768013043) and next prime (1611768013069).

It is a super-2 number, since 2×1611768013056² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1665786 + ... + 2449158.

Almost surely, 2^{1611768013056} is an apocalyptic number.

1611768013056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1611768013056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2497897671360).

1611768013056 is an abundant number, since it is smaller than the sum of its proper divisors (3384027329664).

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

1611768013056 is a wasteful number, since it uses less digits than its factorization.

1611768013056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783461 (or 783444 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The spelling of 1611768013056 in words is "one trillion, six hundred eleven billion, seven hundred sixty-eight million, thirteen thousand, fifty-six".