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BaseRepresentation
bin1011000000100110011110…
…1100010100101111010000
31120212020000022011011221000
42300021213230110233100
53041311423110401111
641424535105502000
72356361063110461
oct260114754245720
946766008134830
1012104957512656
113947757a385a8
121436031941900
1369a653303168
142dbc51200d68
1515ed274bcc56
hexb0267b14bd0

12104957512656 has 80 divisors (see below), whose sum is σ = 34967021838400. Its totient is φ = 4009285268352.

The previous prime is 12104957512633. The next prime is 12104957512699. The reversal of 12104957512656 is 65621575940121.

12104957512656 is a `hidden beast` number, since 1 + 2 + 1 + 0 + 4 + 9 + 575 + 1 + 2 + 65 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 89170186 + ... + 89305833.

It is an arithmetic number, because the mean of its divisors is an integer number (437087772980).

Almost surely, 212104957512656 is an apocalyptic number.

12104957512656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12104957512656 is an abundant number, since it is smaller than the sum of its proper divisors (22862064325744).

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

12104957512656 is a wasteful number, since it uses less digits than its factorization.

12104957512656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178476193 (or 178476181 counting only the distinct ones).

The product of its (nonzero) digits is 4536000, while the sum is 54.

The spelling of 12104957512656 in words is "twelve trillion, one hundred four billion, nine hundred fifty-seven million, five hundred twelve thousand, six hundred fifty-six".