3081857261616 has 60 divisors (see below), whose sum is σ = 9857051403472. Its totient is φ = 880530645888.

The previous prime is 3081857261599. The next prime is 3081857261621. The reversal of 3081857261616 is 6161627581803.

It is a happy number.

3081857261616 is a `hidden beast` number, since 3 + 0 + 8 + 1 + 8 + 5 + 7 + 2 + 616 + 16 = 666.

It is a super-6 number, since 6×3081857261616⁶ (a number of 76 digits) contains 666666 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1528698031 + ... + 1528700046.

Almost surely, 2^{3081857261616} is an apocalyptic number.

3081857261616 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3081857261616 is an abundant number, since it is smaller than the sum of its proper divisors (6775194141856).

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

3081857261616 is a wasteful number, since it uses less digits than its factorization.

3081857261616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3057398098 (or 3057398089 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 3081857261616 in words is "three trillion, eighty-one billion, eight hundred fifty-seven million, two hundred sixty-one thousand, six hundred sixteen".