1301881616 has 20 divisors (see below), whose sum is σ = 2882738112. Its totient is φ = 557949216.

The previous prime is 1301881597. The next prime is 1301881619. The reversal of 1301881616 is 6161881031.

It is not an unprimeable number, because it can be changed into a prime (1301881619) 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, 5811860 + ... + 5812083.

Almost surely, 2^1301881616 is an apocalyptic number.

1301881616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1301881616 is an abundant number, since it is smaller than the sum of its proper divisors (1580856496).

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

1301881616 is a wasteful number, since it uses less digits than its factorization.

1301881616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11623958 (or 11623952 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 1301881616 is about 36081.5966387298. The cubic root of 1301881616 is about 1091.9191887852.

The spelling of 1301881616 in words is "one billion, three hundred one million, eight hundred eighty-one thousand, six hundred sixteen".