1016644616436 has 12 divisors (see below), whose sum is σ = 2372170771712. Its totient is φ = 338881538808.

The previous prime is 1016644616431. The next prime is 1016644616443. The reversal of 1016644616436 is 6346164466101.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1016644616436² (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 (1016644616431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42360192340 + ... + 42360192363.

Almost surely, 2^{1016644616436} is an apocalyptic number.

It is an amenable number.

1016644616436 is an abundant number, since it is smaller than the sum of its proper divisors (1355526155276).

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

1016644616436 is a wasteful number, since it uses less digits than its factorization.

1016644616436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84720384710 (or 84720384708 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 48.

The spelling of 1016644616436 in words is "one trillion, sixteen billion, six hundred forty-four million, six hundred sixteen thousand, four hundred thirty-six".