16081274776 has 32 divisors (see below), whose sum is σ = 35391227040. Its totient is φ = 6705704448.

The previous prime is 16081274773. The next prime is 16081274791. The reversal of 16081274776 is 67747218061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16081274771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3878545 + ... + 3882688.

It is an arithmetic number, because the mean of its divisors is an integer number (1105975845).

Almost surely, 2^16081274776 is an apocalyptic number.

It is an amenable number.

16081274776 is an abundant number, since it is smaller than the sum of its proper divisors (19309952264).

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

16081274776 is a wasteful number, since it uses less digits than its factorization.

16081274776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7761283 (or 7761279 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 49.

The spelling of 16081274776 in words is "sixteen billion, eighty-one million, two hundred seventy-four thousand, seven hundred seventy-six".