16047778144 has 24 divisors (see below), whose sum is σ = 31667394528. Its totient is φ = 8005265280.

The previous prime is 16047778139. The next prime is 16047778147. The reversal of 16047778144 is 44187774061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16047778147) 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, 567987 + ... + 595570.

It is an arithmetic number, because the mean of its divisors is an integer number (1319474772).

Almost surely, 2^16047778144 is an apocalyptic number.

It is an amenable number.

16047778144 is a deficient number, since it is larger than the sum of its proper divisors (15619616384).

16047778144 is a wasteful number, since it uses less digits than its factorization.

16047778144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163998 (or 1163990 counting only the distinct ones).

The product of its (nonzero) digits is 1053696, while the sum is 49.

The spelling of 16047778144 in words is "sixteen billion, forty-seven million, seven hundred seventy-eight thousand, one hundred forty-four".