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6161153974272 = 213381117613
BaseRepresentation
bin101100110101000000101…
…1001001110000000000000
3210211000000102011200000000
41121222001121032000000
51301421020404134042
621034221200000000
71204062065456643
oct131520131160000
923730012150000
106161153974272
111a65a26885560
128360a6000000
13358cc06c771b
141742b6a91a5a
15aa3ebdbd74c
hex59a8164e000

6161153974272 has 1008 divisors, whose sum is σ = 21382318060272. Its totient is φ = 1754325319680.

The previous prime is 6161153974267. The next prime is 6161153974343. The reversal of 6161153974272 is 2724793511616.

6161153974272 is a `hidden beast` number, since 6 + 1 + 6 + 11 + 539 + 74 + 27 + 2 = 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 71 ways as a sum of consecutive naturals, for example, 10050821838 + ... + 10050822450.

Almost surely, 26161153974272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6161153974272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10691159030136).

6161153974272 is an abundant number, since it is smaller than the sum of its proper divisors (15221164086000).

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

6161153974272 is an frugal number, since it uses more digits than its factorization.

6161153974272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691 (or 646 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 54.

The spelling of 6161153974272 in words is "six trillion, one hundred sixty-one billion, one hundred fifty-three million, nine hundred seventy-four thousand, two hundred seventy-two".