16557011776340 has 48 divisors (see below), whose sum is σ = 39915020393472. Its totient is φ = 5651233733376.

The previous prime is 16557011776289. The next prime is 16557011776399. The reversal of 16557011776340 is 4367711075561.

It is a super-2 number, since 2×16557011776340² (a number of 27 digits) contains 22 as substring.

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, 265135529 + ... + 265197968.

It is an arithmetic number, because the mean of its divisors is an integer number (831562924864).

Almost surely, 2^{16557011776340} is an apocalyptic number.

16557011776340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16557011776340 is an abundant number, since it is smaller than the sum of its proper divisors (23358008617132).

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

16557011776340 is a wasteful number, since it uses less digits than its factorization.

16557011776340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530333736 (or 530333734 counting only the distinct ones).

The product of its (nonzero) digits is 3704400, while the sum is 53.

The spelling of 16557011776340 in words is "sixteen trillion, five hundred fifty-seven billion, eleven million, seven hundred seventy-six thousand, three hundred forty".