1616354361144 has 48 divisors (see below), whose sum is σ = 4391702424720. Its totient is φ = 537052352640.

The previous prime is 1616354361131. The next prime is 1616354361169. The reversal of 1616354361144 is 4411634536161.

It is a happy number.

1616354361144 is a `hidden beast` number, since 1 + 6 + 1 + 6 + 3 + 543 + 61 + 1 + 44 = 666.

It is a super-2 number, since 2×1616354361144² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1616354361144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36069837 + ... + 36114620.

It is an arithmetic number, because the mean of its divisors is an integer number (91493800515).

Almost surely, 2^{1616354361144} is an apocalyptic number.

It is an amenable number.

1616354361144 is an abundant number, since it is smaller than the sum of its proper divisors (2775348063576).

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

1616354361144 is a wasteful number, since it uses less digits than its factorization.

1616354361144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72184780 (or 72184773 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The spelling of 1616354361144 in words is "one trillion, six hundred sixteen billion, three hundred fifty-four million, three hundred sixty-one thousand, one hundred forty-four".