1356721208016 has 80 divisors (see below), whose sum is σ = 3526262519040. Its totient is φ = 449487198720.

The previous prime is 1356721207997. The next prime is 1356721208041. The reversal of 1356721208016 is 6108021276531.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5311161 + ... + 5560743.

It is an arithmetic number, because the mean of its divisors is an integer number (44078281488).

Almost surely, 2^{1356721208016} is an apocalyptic number.

1356721208016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1356721208016 is an abundant number, since it is smaller than the sum of its proper divisors (2169541311024).

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

1356721208016 is a wasteful number, since it uses less digits than its factorization.

1356721208016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250284 (or 250278 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 1356721208016 in words is "one trillion, three hundred fifty-six billion, seven hundred twenty-one million, two hundred eight thousand, sixteen".